Finding the Third Proportional to 59,366,128 and 90,814,707

Step by Step Solution

1. Step 1: Write the proportion equation
   59,366,128 : 90,814,707 = 90,814,707 : x
2. Step 2: Convert to fraction form
   59,366,128/90,814,707 = 90,814,707/x
3. Step 3: Cross multiply
   59,366,128x = 90,814,707 × 90,814,707
4. Step 4: Simplify right side
   59,366,128x = 8,247,311,007,495,849
5. Step 5: Solve for x
   x = 8,247,311,007,495,849/59,366,128
6. Step 6: Final answer
   x = 138,922,838.42