Finding the Third Proportional to 392,322 and 831,730.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,322 : 831,730.50 = 831,730.50 : x
2. Step 2: Convert to fraction form
   392,322/831,730.50 = 831,730.50/x
3. Step 3: Cross multiply
   392,322x = 831,730.50 × 831,730.50
4. Step 4: Simplify right side
   392,322x = 691,775,624,630.25
5. Step 5: Solve for x
   x = 691,775,624,630.25/392,322
6. Step 6: Final answer
   x = 1,763,285.32