Finding the Third Proportional to 56,781,856 and 123,528,228

Step by Step Solution

1. Step 1: Write the proportion equation
   56,781,856 : 123,528,228 = 123,528,228 : x
2. Step 2: Convert to fraction form
   56,781,856/123,528,228 = 123,528,228/x
3. Step 3: Cross multiply
   56,781,856x = 123,528,228 × 123,528,228
4. Step 4: Simplify right side
   56,781,856x = 15,259,223,112,819,984
5. Step 5: Solve for x
   x = 15,259,223,112,819,984/56,781,856
6. Step 6: Final answer
   x = 268,734,137.76