Finding the Third Proportional to 89,788.13 and 133,903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,788.13 : 133,903.50 = 133,903.50 : x
2. Step 2: Convert to fraction form
   89,788.13/133,903.50 = 133,903.50/x
3. Step 3: Cross multiply
   89,788.13x = 133,903.50 × 133,903.50
4. Step 4: Simplify right side
   89,788.13x = 17,930,147,312.25
5. Step 5: Solve for x
   x = 17,930,147,312.25/89,788.13
6. Step 6: Final answer
   x = 199,693.97