Finding the Third Proportional to 109,158 and 237,540

Step by Step Solution

1. Step 1: Write the proportion equation
   109,158 : 237,540 = 237,540 : x
2. Step 2: Convert to fraction form
   109,158/237,540 = 237,540/x
3. Step 3: Cross multiply
   109,158x = 237,540 × 237,540
4. Step 4: Simplify right side
   109,158x = 56,425,251,600
5. Step 5: Solve for x
   x = 56,425,251,600/109,158
6. Step 6: Final answer
   x = 516,913.57