Finding the Third Proportional to 88,991.25 and 137,832

Step by Step Solution

1. Step 1: Write the proportion equation
   88,991.25 : 137,832 = 137,832 : x
2. Step 2: Convert to fraction form
   88,991.25/137,832 = 137,832/x
3. Step 3: Cross multiply
   88,991.25x = 137,832 × 137,832
4. Step 4: Simplify right side
   88,991.25x = 18,997,660,224
5. Step 5: Solve for x
   x = 18,997,660,224/88,991.25
6. Step 6: Final answer
   x = 213,477.84