Finding the Third Proportional to 329,415 and 719,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   329,415 : 719,062.50 = 719,062.50 : x
2. Step 2: Convert to fraction form
   329,415/719,062.50 = 719,062.50/x
3. Step 3: Cross multiply
   329,415x = 719,062.50 × 719,062.50
4. Step 4: Simplify right side
   329,415x = 517,050,878,906.25
5. Step 5: Solve for x
   x = 517,050,878,906.25/329,415
6. Step 6: Final answer
   x = 1,569,603.32