Finding the Third Proportional to 89,240 and 131,403

Step by Step Solution

1. Step 1: Write the proportion equation
   89,240 : 131,403 = 131,403 : x
2. Step 2: Convert to fraction form
   89,240/131,403 = 131,403/x
3. Step 3: Cross multiply
   89,240x = 131,403 × 131,403
4. Step 4: Simplify right side
   89,240x = 17,266,748,409
5. Step 5: Solve for x
   x = 17,266,748,409/89,240
6. Step 6: Final answer
   x = 193,486.65