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Finding the Third Proportional to 310,788.94 and 438,676.88

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Solution

The third proportional to 310,788.94 and 438,676.88 is: 619,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,788.94 : 438,676.88 = 438,676.88 : x
  2. Step 2: Convert to fraction form
    310,788.94/438,676.88 = 438,676.88/x
  3. Step 3: Cross multiply
    310,788.94x = 438,676.88 × 438,676.88
  4. Step 4: Simplify right side
    310,788.94x = 192,437,400,659.77
  5. Step 5: Solve for x
    x = 192,437,400,659.77/310,788.94
  6. Step 6: Final answer
    x = 619,190.00

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