Finding the Third Proportional to 90,396 and 133,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,396 : 133,748.72 = 133,748.72 : x
2. Step 2: Convert to fraction form
   90,396/133,748.72 = 133,748.72/x
3. Step 3: Cross multiply
   90,396x = 133,748.72 × 133,748.72
4. Step 4: Simplify right side
   90,396x = 17,888,719,767.27
5. Step 5: Solve for x
   x = 17,888,719,767.27/90,396
6. Step 6: Final answer
   x = 197,892.82