Finding the Third Proportional to 190,891.69 and 358,941.38

Step by Step Solution

1. Step 1: Write the proportion equation
   190,891.69 : 358,941.38 = 358,941.38 : x
2. Step 2: Convert to fraction form
   190,891.69/358,941.38 = 358,941.38/x
3. Step 3: Cross multiply
   190,891.69x = 358,941.38 × 358,941.38
4. Step 4: Simplify right side
   190,891.69x = 128,838,910,686.89
5. Step 5: Solve for x
   x = 128,838,910,686.89/190,891.69
6. Step 6: Final answer
   x = 674,932.01