Finding the Third Proportional to 393,865.50 and 859,023

Step by Step Solution

1. Step 1: Write the proportion equation
   393,865.50 : 859,023 = 859,023 : x
2. Step 2: Convert to fraction form
   393,865.50/859,023 = 859,023/x
3. Step 3: Cross multiply
   393,865.50x = 859,023 × 859,023
4. Step 4: Simplify right side
   393,865.50x = 737,920,514,529
5. Step 5: Solve for x
   x = 737,920,514,529/393,865.50
6. Step 6: Final answer
   x = 1,873,534.28