Finding the Third Proportional to 282,726 and 615,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   282,726 : 615,388.50 = 615,388.50 : x
2. Step 2: Convert to fraction form
   282,726/615,388.50 = 615,388.50/x
3. Step 3: Cross multiply
   282,726x = 615,388.50 × 615,388.50
4. Step 4: Simplify right side
   282,726x = 378,703,005,932.25
5. Step 5: Solve for x
   x = 378,703,005,932.25/282,726
6. Step 6: Final answer
   x = 1,339,470.04