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Finding the Third Proportional to 248,218,070 and 399,945,434

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Solution

The third proportional to 248,218,070 and 399,945,434 is: 644,418,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,218,070 : 399,945,434 = 399,945,434 : x
  2. Step 2: Convert to fraction form
    248,218,070/399,945,434 = 399,945,434/x
  3. Step 3: Cross multiply
    248,218,070x = 399,945,434 × 399,945,434
  4. Step 4: Simplify right side
    248,218,070x = 159,956,350,177,448,352
  5. Step 5: Solve for x
    x = 159,956,350,177,448,352/248,218,070
  6. Step 6: Final answer
    x = 644,418,636.31

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