Finding the Third Proportional to 123,448 and 265,850

Step by Step Solution

1. Step 1: Write the proportion equation
   123,448 : 265,850 = 265,850 : x
2. Step 2: Convert to fraction form
   123,448/265,850 = 265,850/x
3. Step 3: Cross multiply
   123,448x = 265,850 × 265,850
4. Step 4: Simplify right side
   123,448x = 70,676,222,500
5. Step 5: Solve for x
   x = 70,676,222,500/123,448
6. Step 6: Final answer
   x = 572,518.17