Finding the Third Proportional to 231,736.50 and 358,632

Step by Step Solution

1. Step 1: Write the proportion equation
   231,736.50 : 358,632 = 358,632 : x
2. Step 2: Convert to fraction form
   231,736.50/358,632 = 358,632/x
3. Step 3: Cross multiply
   231,736.50x = 358,632 × 358,632
4. Step 4: Simplify right side
   231,736.50x = 128,616,911,424
5. Step 5: Solve for x
   x = 128,616,911,424/231,736.50
6. Step 6: Final answer
   x = 555,013.61