Finding the Third Proportional to 4,985,970 and 10,915,428

Step by Step Solution

1. Step 1: Write the proportion equation
   4,985,970 : 10,915,428 = 10,915,428 : x
2. Step 2: Convert to fraction form
   4,985,970/10,915,428 = 10,915,428/x
3. Step 3: Cross multiply
   4,985,970x = 10,915,428 × 10,915,428
4. Step 4: Simplify right side
   4,985,970x = 119,146,568,423,184
5. Step 5: Solve for x
   x = 119,146,568,423,184/4,985,970
6. Step 6: Final answer
   x = 23,896,366.89