Finding the Third Proportional to 59,574,774 and 128,559,156

Step by Step Solution

1. Step 1: Write the proportion equation
   59,574,774 : 128,559,156 = 128,559,156 : x
2. Step 2: Convert to fraction form
   59,574,774/128,559,156 = 128,559,156/x
3. Step 3: Cross multiply
   59,574,774x = 128,559,156 × 128,559,156
4. Step 4: Simplify right side
   59,574,774x = 16,527,456,591,432,336
5. Step 5: Solve for x
   x = 16,527,456,591,432,336/59,574,774
6. Step 6: Final answer
   x = 277,423,739.64