Finding the Third Proportional to 87,896 and 139,748

Step by Step Solution

1. Step 1: Write the proportion equation
   87,896 : 139,748 = 139,748 : x
2. Step 2: Convert to fraction form
   87,896/139,748 = 139,748/x
3. Step 3: Cross multiply
   87,896x = 139,748 × 139,748
4. Step 4: Simplify right side
   87,896x = 19,529,503,504
5. Step 5: Solve for x
   x = 19,529,503,504/87,896
6. Step 6: Final answer
   x = 222,188.76