Finding the Third Proportional to 130,855.50 and 286,633.69

Step by Step Solution

1. Step 1: Write the proportion equation
   130,855.50 : 286,633.69 = 286,633.69 : x
2. Step 2: Convert to fraction form
   130,855.50/286,633.69 = 286,633.69/x
3. Step 3: Cross multiply
   130,855.50x = 286,633.69 × 286,633.69
4. Step 4: Simplify right side
   130,855.50x = 82,158,870,809.85
5. Step 5: Solve for x
   x = 82,158,870,809.85/130,855.50
6. Step 6: Final answer
   x = 627,859.52