Finding the Third Proportional to 90,460 and 196,484

Step by Step Solution

1. Step 1: Write the proportion equation
   90,460 : 196,484 = 196,484 : x
2. Step 2: Convert to fraction form
   90,460/196,484 = 196,484/x
3. Step 3: Cross multiply
   90,460x = 196,484 × 196,484
4. Step 4: Simplify right side
   90,460x = 38,605,962,256
5. Step 5: Solve for x
   x = 38,605,962,256/90,460
6. Step 6: Final answer
   x = 426,773.85