Finding the Third Proportional to 2,607,761.81 and 3,989,143.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607,761.81 : 3,989,143.69 = 3,989,143.69 : x
2. Step 2: Convert to fraction form
   2,607,761.81/3,989,143.69 = 3,989,143.69/x
3. Step 3: Cross multiply
   2,607,761.81x = 3,989,143.69 × 3,989,143.69
4. Step 4: Simplify right side
   2,607,761.81x = 15,913,267,359,521.10
5. Step 5: Solve for x
   x = 15,913,267,359,521.10/2,607,761.81
6. Step 6: Final answer
   x = 6,102,270.26