Finding the Third Proportional to 864,426.50 and 1,268,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   864,426.50 : 1,268,613.50 = 1,268,613.50 : x
2. Step 2: Convert to fraction form
   864,426.50/1,268,613.50 = 1,268,613.50/x
3. Step 3: Cross multiply
   864,426.50x = 1,268,613.50 × 1,268,613.50
4. Step 4: Simplify right side
   864,426.50x = 1,609,380,212,382.25
5. Step 5: Solve for x
   x = 1,609,380,212,382.25/864,426.50
6. Step 6: Final answer
   x = 1,861,789.54