Finding the Third Proportional to 98,290.50 and 231,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,290.50 : 231,055.50 = 231,055.50 : x
2. Step 2: Convert to fraction form
   98,290.50/231,055.50 = 231,055.50/x
3. Step 3: Cross multiply
   98,290.50x = 231,055.50 × 231,055.50
4. Step 4: Simplify right side
   98,290.50x = 53,386,644,080.25
5. Step 5: Solve for x
   x = 53,386,644,080.25/98,290.50
6. Step 6: Final answer
   x = 543,151.62