Finding the Third Proportional to 382,920 and 832,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   382,920 : 832,990.50 = 832,990.50 : x
2. Step 2: Convert to fraction form
   382,920/832,990.50 = 832,990.50/x
3. Step 3: Cross multiply
   382,920x = 832,990.50 × 832,990.50
4. Step 4: Simplify right side
   382,920x = 693,873,173,090.25
5. Step 5: Solve for x
   x = 693,873,173,090.25/382,920
6. Step 6: Final answer
   x = 1,812,057.80