Finding the Third Proportional to 57,700,386 and 121,839,300

Step by Step Solution

1. Step 1: Write the proportion equation
   57,700,386 : 121,839,300 = 121,839,300 : x
2. Step 2: Convert to fraction form
   57,700,386/121,839,300 = 121,839,300/x
3. Step 3: Cross multiply
   57,700,386x = 121,839,300 × 121,839,300
4. Step 4: Simplify right side
   57,700,386x = 14,844,815,024,490,000
5. Step 5: Solve for x
   x = 14,844,815,024,490,000/57,700,386
6. Step 6: Final answer
   x = 257,274,102.54