Finding the Third Proportional to 131,886 and 279,468

Step by Step Solution

1. Step 1: Write the proportion equation
   131,886 : 279,468 = 279,468 : x
2. Step 2: Convert to fraction form
   131,886/279,468 = 279,468/x
3. Step 3: Cross multiply
   131,886x = 279,468 × 279,468
4. Step 4: Simplify right side
   131,886x = 78,102,363,024
5. Step 5: Solve for x
   x = 78,102,363,024/131,886
6. Step 6: Final answer
   x = 592,196.01