Finding the Third Proportional to 87,745 and 139,514

Step by Step Solution

1. Step 1: Write the proportion equation
   87,745 : 139,514 = 139,514 : x
2. Step 2: Convert to fraction form
   87,745/139,514 = 139,514/x
3. Step 3: Cross multiply
   87,745x = 139,514 × 139,514
4. Step 4: Simplify right side
   87,745x = 19,464,156,196
5. Step 5: Solve for x
   x = 19,464,156,196/87,745
6. Step 6: Final answer
   x = 221,826.39