Finding the Third Proportional to 3,913,863 and 7,937,820

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,863 : 7,937,820 = 7,937,820 : x
2. Step 2: Convert to fraction form
   3,913,863/7,937,820 = 7,937,820/x
3. Step 3: Cross multiply
   3,913,863x = 7,937,820 × 7,937,820
4. Step 4: Simplify right side
   3,913,863x = 63,008,986,352,400
5. Step 5: Solve for x
   x = 63,008,986,352,400/3,913,863
6. Step 6: Final answer
   x = 16,098,924.86