Finding the Third Proportional to 131,068.69 and 286,668.56

Step by Step Solution

1. Step 1: Write the proportion equation
   131,068.69 : 286,668.56 = 286,668.56 : x
2. Step 2: Convert to fraction form
   131,068.69/286,668.56 = 286,668.56/x
3. Step 3: Cross multiply
   131,068.69x = 286,668.56 × 286,668.56
4. Step 4: Simplify right side
   131,068.69x = 82,178,864,725.82
5. Step 5: Solve for x
   x = 82,178,864,725.82/131,068.69
6. Step 6: Final answer
   x = 626,990.83