Finding the Third Proportional to 103,633,872 and 221,616,648

Step by Step Solution

1. Step 1: Write the proportion equation
   103,633,872 : 221,616,648 = 221,616,648 : x
2. Step 2: Convert to fraction form
   103,633,872/221,616,648 = 221,616,648/x
3. Step 3: Cross multiply
   103,633,872x = 221,616,648 × 221,616,648
4. Step 4: Simplify right side
   103,633,872x = 49,113,938,670,755,904
5. Step 5: Solve for x
   x = 49,113,938,670,755,904/103,633,872
6. Step 6: Final answer
   x = 473,917,819.75