Finding the Third Proportional to 59,956,989.75 and 128,835,522

Step by Step Solution

1. Step 1: Write the proportion equation
   59,956,989.75 : 128,835,522 = 128,835,522 : x
2. Step 2: Convert to fraction form
   59,956,989.75/128,835,522 = 128,835,522/x
3. Step 3: Cross multiply
   59,956,989.75x = 128,835,522 × 128,835,522
4. Step 4: Simplify right side
   59,956,989.75x = 16,598,591,729,012,484
5. Step 5: Solve for x
   x = 16,598,591,729,012,484/59,956,989.75
6. Step 6: Final answer
   x = 276,841,645.96