Finding the Third Proportional to 56,479,466 and 123,316,636

Step by Step Solution

1. Step 1: Write the proportion equation
   56,479,466 : 123,316,636 = 123,316,636 : x
2. Step 2: Convert to fraction form
   56,479,466/123,316,636 = 123,316,636/x
3. Step 3: Cross multiply
   56,479,466x = 123,316,636 × 123,316,636
4. Step 4: Simplify right side
   56,479,466x = 15,206,992,714,356,496
5. Step 5: Solve for x
   x = 15,206,992,714,356,496/56,479,466
6. Step 6: Final answer
   x = 269,248,167.37