Finding the Third Proportional to 392,892 and 857,749.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,892 : 857,749.50 = 857,749.50 : x
2. Step 2: Convert to fraction form
   392,892/857,749.50 = 857,749.50/x
3. Step 3: Cross multiply
   392,892x = 857,749.50 × 857,749.50
4. Step 4: Simplify right side
   392,892x = 735,734,204,750.25
5. Step 5: Solve for x
   x = 735,734,204,750.25/392,892
6. Step 6: Final answer
   x = 1,872,611.82