Finding the Third Proportional to 45,898,830 and 99,872,820

Step by Step Solution

1. Step 1: Write the proportion equation
   45,898,830 : 99,872,820 = 99,872,820 : x
2. Step 2: Convert to fraction form
   45,898,830/99,872,820 = 99,872,820/x
3. Step 3: Cross multiply
   45,898,830x = 99,872,820 × 99,872,820
4. Step 4: Simplify right side
   45,898,830x = 9,974,580,174,752,400
5. Step 5: Solve for x
   x = 9,974,580,174,752,400/45,898,830
6. Step 6: Final answer
   x = 217,316,654.36