Finding the Third Proportional to 577,328 and 831,614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   577,328 : 831,614.50 = 831,614.50 : x
2. Step 2: Convert to fraction form
   577,328/831,614.50 = 831,614.50/x
3. Step 3: Cross multiply
   577,328x = 831,614.50 × 831,614.50
4. Step 4: Simplify right side
   577,328x = 691,582,676,610.25
5. Step 5: Solve for x
   x = 691,582,676,610.25/577,328
6. Step 6: Final answer
   x = 1,197,902.54