Finding the Third Proportional to 109,540,613.25 and 231,304,367.25

Step by Step Solution

1. Step 1: Write the proportion equation
   109,540,613.25 : 231,304,367.25 = 231,304,367.25 : x
2. Step 2: Convert to fraction form
   109,540,613.25/231,304,367.25 = 231,304,367.25/x
3. Step 3: Cross multiply
   109,540,613.25x = 231,304,367.25 × 231,304,367.25
4. Step 4: Simplify right side
   109,540,613.25x = 53,501,710,308,922,872
5. Step 5: Solve for x
   x = 53,501,710,308,922,872/109,540,613.25
6. Step 6: Final answer
   x = 488,418,940.90