Finding the Third Proportional to 3,913,861 and 7,937,816

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,861 : 7,937,816 = 7,937,816 : x
2. Step 2: Convert to fraction form
   3,913,861/7,937,816 = 7,937,816/x
3. Step 3: Cross multiply
   3,913,861x = 7,937,816 × 7,937,816
4. Step 4: Simplify right side
   3,913,861x = 63,008,922,849,856
5. Step 5: Solve for x
   x = 63,008,922,849,856/3,913,861
6. Step 6: Final answer
   x = 16,098,916.86