Finding the Third Proportional to 722,978.16 and 1,587,803.77

Step by Step Solution

1. Step 1: Write the proportion equation
   722,978.16 : 1,587,803.77 = 1,587,803.77 : x
2. Step 2: Convert to fraction form
   722,978.16/1,587,803.77 = 1,587,803.77/x
3. Step 3: Cross multiply
   722,978.16x = 1,587,803.77 × 1,587,803.77
4. Step 4: Simplify right side
   722,978.16x = 2,521,120,798,132.93
5. Step 5: Solve for x
   x = 2,521,120,798,132.93/722,978.16
6. Step 6: Final answer
   x = 3,487,132.74