Finding the Third Proportional to 394,533 and 862,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,533 : 862,870.50 = 862,870.50 : x
2. Step 2: Convert to fraction form
   394,533/862,870.50 = 862,870.50/x
3. Step 3: Cross multiply
   394,533x = 862,870.50 × 862,870.50
4. Step 4: Simplify right side
   394,533x = 744,545,499,770.25
5. Step 5: Solve for x
   x = 744,545,499,770.25/394,533
6. Step 6: Final answer
   x = 1,887,156.46