Finding the Third Proportional to 59,920,624 and 128,942,173

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920,624 : 128,942,173 = 128,942,173 : x
2. Step 2: Convert to fraction form
   59,920,624/128,942,173 = 128,942,173/x
3. Step 3: Cross multiply
   59,920,624x = 128,942,173 × 128,942,173
4. Step 4: Simplify right side
   59,920,624x = 16,626,083,977,961,928
5. Step 5: Solve for x
   x = 16,626,083,977,961,928/59,920,624
6. Step 6: Final answer
   x = 277,468,471.92