Finding the Third Proportional to 56,400,550 and 123,687,986

Step by Step Solution

1. Step 1: Write the proportion equation
   56,400,550 : 123,687,986 = 123,687,986 : x
2. Step 2: Convert to fraction form
   56,400,550/123,687,986 = 123,687,986/x
3. Step 3: Cross multiply
   56,400,550x = 123,687,986 × 123,687,986
4. Step 4: Simplify right side
   56,400,550x = 15,298,717,880,736,196
5. Step 5: Solve for x
   x = 15,298,717,880,736,196/56,400,550
6. Step 6: Final answer
   x = 271,251,217.95