Finding the Third Proportional to 357,036 and 521,871.38

Step by Step Solution

1. Step 1: Write the proportion equation
   357,036 : 521,871.38 = 521,871.38 : x
2. Step 2: Convert to fraction form
   357,036/521,871.38 = 521,871.38/x
3. Step 3: Cross multiply
   357,036x = 521,871.38 × 521,871.38
4. Step 4: Simplify right side
   357,036x = 272,349,732,044.39
5. Step 5: Solve for x
   x = 272,349,732,044.39/357,036
6. Step 6: Final answer
   x = 762,807.48