Finding the Third Proportional to 102,731,436 and 213,965,976

Step by Step Solution

1. Step 1: Write the proportion equation
   102,731,436 : 213,965,976 = 213,965,976 : x
2. Step 2: Convert to fraction form
   102,731,436/213,965,976 = 213,965,976/x
3. Step 3: Cross multiply
   102,731,436x = 213,965,976 × 213,965,976
4. Step 4: Simplify right side
   102,731,436x = 45,781,438,885,632,576
5. Step 5: Solve for x
   x = 45,781,438,885,632,576/102,731,436
6. Step 6: Final answer
   x = 445,641,963.83