Finding the Third Proportional to 59,900,118 and 87,603,777

Step by Step Solution

1. Step 1: Write the proportion equation
   59,900,118 : 87,603,777 = 87,603,777 : x
2. Step 2: Convert to fraction form
   59,900,118/87,603,777 = 87,603,777/x
3. Step 3: Cross multiply
   59,900,118x = 87,603,777 × 87,603,777
4. Step 4: Simplify right side
   59,900,118x = 7,674,421,744,665,729
5. Step 5: Solve for x
   x = 7,674,421,744,665,729/59,900,118
6. Step 6: Final answer
   x = 128,120,310.96