Finding the Third Proportional to 98,808 and 213,064

Step by Step Solution

1. Step 1: Write the proportion equation
   98,808 : 213,064 = 213,064 : x
2. Step 2: Convert to fraction form
   98,808/213,064 = 213,064/x
3. Step 3: Cross multiply
   98,808x = 213,064 × 213,064
4. Step 4: Simplify right side
   98,808x = 45,396,268,096
5. Step 5: Solve for x
   x = 45,396,268,096/98,808
6. Step 6: Final answer
   x = 459,439.20