Finding the Third Proportional to 1,684,432 and 2,591,705

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684,432 : 2,591,705 = 2,591,705 : x
2. Step 2: Convert to fraction form
   1,684,432/2,591,705 = 2,591,705/x
3. Step 3: Cross multiply
   1,684,432x = 2,591,705 × 2,591,705
4. Step 4: Simplify right side
   1,684,432x = 6,716,934,807,025
5. Step 5: Solve for x
   x = 6,716,934,807,025/1,684,432
6. Step 6: Final answer
   x = 3,987,655.66