Finding the Third Proportional to 99,283,414 and 216,443,427

Step by Step Solution

1. Step 1: Write the proportion equation
   99,283,414 : 216,443,427 = 216,443,427 : x
2. Step 2: Convert to fraction form
   99,283,414/216,443,427 = 216,443,427/x
3. Step 3: Cross multiply
   99,283,414x = 216,443,427 × 216,443,427
4. Step 4: Simplify right side
   99,283,414x = 46,847,757,091,504,328
5. Step 5: Solve for x
   x = 46,847,757,091,504,328/99,283,414
6. Step 6: Final answer
   x = 471,858,845.34