Finding the Third Proportional to 394,536 and 862,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,536 : 862,900.50 = 862,900.50 : x
2. Step 2: Convert to fraction form
   394,536/862,900.50 = 862,900.50/x
3. Step 3: Cross multiply
   394,536x = 862,900.50 × 862,900.50
4. Step 4: Simplify right side
   394,536x = 744,597,272,900.25
5. Step 5: Solve for x
   x = 744,597,272,900.25/394,536
6. Step 6: Final answer
   x = 1,887,273.34