Finding the Third Proportional to 392,454 and 844,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,454 : 844,807.50 = 844,807.50 : x
2. Step 2: Convert to fraction form
   392,454/844,807.50 = 844,807.50/x
3. Step 3: Cross multiply
   392,454x = 844,807.50 × 844,807.50
4. Step 4: Simplify right side
   392,454x = 713,699,712,056.25
5. Step 5: Solve for x
   x = 713,699,712,056.25/392,454
6. Step 6: Final answer
   x = 1,818,556.35