Finding the Third Proportional to 220,806 and 491,568.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,806 : 491,568.50 = 491,568.50 : x
2. Step 2: Convert to fraction form
   220,806/491,568.50 = 491,568.50/x
3. Step 3: Cross multiply
   220,806x = 491,568.50 × 491,568.50
4. Step 4: Simplify right side
   220,806x = 241,639,590,192.25
5. Step 5: Solve for x
   x = 241,639,590,192.25/220,806
6. Step 6: Final answer
   x = 1,094,352.46