Finding the Third Proportional to 90,064 and 208,496

Step by Step Solution

1. Step 1: Write the proportion equation
   90,064 : 208,496 = 208,496 : x
2. Step 2: Convert to fraction form
   90,064/208,496 = 208,496/x
3. Step 3: Cross multiply
   90,064x = 208,496 × 208,496
4. Step 4: Simplify right side
   90,064x = 43,470,582,016
5. Step 5: Solve for x
   x = 43,470,582,016/90,064
6. Step 6: Final answer
   x = 482,663.24