Finding the Third Proportional to 357,564 and 783,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,564 : 783,410.50 = 783,410.50 : x
2. Step 2: Convert to fraction form
   357,564/783,410.50 = 783,410.50/x
3. Step 3: Cross multiply
   357,564x = 783,410.50 × 783,410.50
4. Step 4: Simplify right side
   357,564x = 613,732,011,510.25
5. Step 5: Solve for x
   x = 613,732,011,510.25/357,564
6. Step 6: Final answer
   x = 1,716,425.62