Finding the Third Proportional to 392,167.83 and 831,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,167.83 : 831,424.50 = 831,424.50 : x
2. Step 2: Convert to fraction form
   392,167.83/831,424.50 = 831,424.50/x
3. Step 3: Cross multiply
   392,167.83x = 831,424.50 × 831,424.50
4. Step 4: Simplify right side
   392,167.83x = 691,266,699,200.25
5. Step 5: Solve for x
   x = 691,266,699,200.25/392,167.83
6. Step 6: Final answer
   x = 1,762,680.80