Finding the Third Proportional to 87,908 and 139,764

Step by Step Solution

1. Step 1: Write the proportion equation
   87,908 : 139,764 = 139,764 : x
2. Step 2: Convert to fraction form
   87,908/139,764 = 139,764/x
3. Step 3: Cross multiply
   87,908x = 139,764 × 139,764
4. Step 4: Simplify right side
   87,908x = 19,533,975,696
5. Step 5: Solve for x
   x = 19,533,975,696/87,908
6. Step 6: Final answer
   x = 222,209.31