Finding the Third Proportional to 185,250 and 399,300

Step by Step Solution

1. Step 1: Write the proportion equation
   185,250 : 399,300 = 399,300 : x
2. Step 2: Convert to fraction form
   185,250/399,300 = 399,300/x
3. Step 3: Cross multiply
   185,250x = 399,300 × 399,300
4. Step 4: Simplify right side
   185,250x = 159,440,490,000
5. Step 5: Solve for x
   x = 159,440,490,000/185,250
6. Step 6: Final answer
   x = 860,677.41