Finding the Third Proportional to 56,436 and 123,948

Step by Step Solution

1. Step 1: Write the proportion equation
   56,436 : 123,948 = 123,948 : x
2. Step 2: Convert to fraction form
   56,436/123,948 = 123,948/x
3. Step 3: Cross multiply
   56,436x = 123,948 × 123,948
4. Step 4: Simplify right side
   56,436x = 15,363,106,704
5. Step 5: Solve for x
   x = 15,363,106,704/56,436
6. Step 6: Final answer
   x = 272,221.75