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Finding the Third Proportional to 413,236.69 and 638,556.75

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Solution

The third proportional to 413,236.69 and 638,556.75 is: 986,734.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,236.69 : 638,556.75 = 638,556.75 : x
  2. Step 2: Convert to fraction form
    413,236.69/638,556.75 = 638,556.75/x
  3. Step 3: Cross multiply
    413,236.69x = 638,556.75 × 638,556.75
  4. Step 4: Simplify right side
    413,236.69x = 407,754,722,970.56
  5. Step 5: Solve for x
    x = 407,754,722,970.56/413,236.69
  6. Step 6: Final answer
    x = 986,734.08

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