Finding the Third Proportional to 90,748 and 196,088

Step by Step Solution

1. Step 1: Write the proportion equation
   90,748 : 196,088 = 196,088 : x
2. Step 2: Convert to fraction form
   90,748/196,088 = 196,088/x
3. Step 3: Cross multiply
   90,748x = 196,088 × 196,088
4. Step 4: Simplify right side
   90,748x = 38,450,503,744
5. Step 5: Solve for x
   x = 38,450,503,744/90,748
6. Step 6: Final answer
   x = 423,706.35