Finding the Third Proportional to 59,843,434 and 90,971,768

Step by Step Solution

1. Step 1: Write the proportion equation
   59,843,434 : 90,971,768 = 90,971,768 : x
2. Step 2: Convert to fraction form
   59,843,434/90,971,768 = 90,971,768/x
3. Step 3: Cross multiply
   59,843,434x = 90,971,768 × 90,971,768
4. Step 4: Simplify right side
   59,843,434x = 8,275,862,573,045,824
5. Step 5: Solve for x
   x = 8,275,862,573,045,824/59,843,434
6. Step 6: Final answer
   x = 138,291,906.39