Finding the Third Proportional to 59,900,016 and 87,603,624

Step by Step Solution

1. Step 1: Write the proportion equation
   59,900,016 : 87,603,624 = 87,603,624 : x
2. Step 2: Convert to fraction form
   59,900,016/87,603,624 = 87,603,624/x
3. Step 3: Cross multiply
   59,900,016x = 87,603,624 × 87,603,624
4. Step 4: Simplify right side
   59,900,016x = 7,674,394,937,933,376
5. Step 5: Solve for x
   x = 7,674,394,937,933,376/59,900,016
6. Step 6: Final answer
   x = 128,120,081.60