Finding the Third Proportional to 3,898,948 and 8,694,390

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898,948 : 8,694,390 = 8,694,390 : x
2. Step 2: Convert to fraction form
   3,898,948/8,694,390 = 8,694,390/x
3. Step 3: Cross multiply
   3,898,948x = 8,694,390 × 8,694,390
4. Step 4: Simplify right side
   3,898,948x = 75,592,417,472,100
5. Step 5: Solve for x
   x = 75,592,417,472,100/3,898,948
6. Step 6: Final answer
   x = 19,387,900.91