Finding the Third Proportional to 56,414 and 123,900

Step by Step Solution

1. Step 1: Write the proportion equation
   56,414 : 123,900 = 123,900 : x
2. Step 2: Convert to fraction form
   56,414/123,900 = 123,900/x
3. Step 3: Cross multiply
   56,414x = 123,900 × 123,900
4. Step 4: Simplify right side
   56,414x = 15,351,210,000
5. Step 5: Solve for x
   x = 15,351,210,000/56,414
6. Step 6: Final answer
   x = 272,117.03