Finding the Third Proportional to 26,929,121 and 42,648,155

Step by Step Solution

1. Step 1: Write the proportion equation
   26,929,121 : 42,648,155 = 42,648,155 : x
2. Step 2: Convert to fraction form
   26,929,121/42,648,155 = 42,648,155/x
3. Step 3: Cross multiply
   26,929,121x = 42,648,155 × 42,648,155
4. Step 4: Simplify right side
   26,929,121x = 1,818,865,124,904,025
5. Step 5: Solve for x
   x = 1,818,865,124,904,025/26,929,121
6. Step 6: Final answer
   x = 67,542,684.55