Finding the Third Proportional to 610,807.50 and 1,315,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   610,807.50 : 1,315,264.50 = 1,315,264.50 : x
2. Step 2: Convert to fraction form
   610,807.50/1,315,264.50 = 1,315,264.50/x
3. Step 3: Cross multiply
   610,807.50x = 1,315,264.50 × 1,315,264.50
4. Step 4: Simplify right side
   610,807.50x = 1,729,920,704,960.25
5. Step 5: Solve for x
   x = 1,729,920,704,960.25/610,807.50
6. Step 6: Final answer
   x = 2,832,186.42