Finding the Third Proportional to 4,499,598 and 9,899,700

Step by Step Solution

1. Step 1: Write the proportion equation
   4,499,598 : 9,899,700 = 9,899,700 : x
2. Step 2: Convert to fraction form
   4,499,598/9,899,700 = 9,899,700/x
3. Step 3: Cross multiply
   4,499,598x = 9,899,700 × 9,899,700
4. Step 4: Simplify right side
   4,499,598x = 98,004,060,090,000
5. Step 5: Solve for x
   x = 98,004,060,090,000/4,499,598
6. Step 6: Final answer
   x = 21,780,625.76