Finding the Third Proportional to 86,967 and 138,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,967 : 138,340.50 = 138,340.50 : x
2. Step 2: Convert to fraction form
   86,967/138,340.50 = 138,340.50/x
3. Step 3: Cross multiply
   86,967x = 138,340.50 × 138,340.50
4. Step 4: Simplify right side
   86,967x = 19,138,093,940.25
5. Step 5: Solve for x
   x = 19,138,093,940.25/86,967
6. Step 6: Final answer
   x = 220,061.56