Finding the Third Proportional to 366,423 and 807,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   366,423 : 807,385.50 = 807,385.50 : x
2. Step 2: Convert to fraction form
   366,423/807,385.50 = 807,385.50/x
3. Step 3: Cross multiply
   366,423x = 807,385.50 × 807,385.50
4. Step 4: Simplify right side
   366,423x = 651,871,345,610.25
5. Step 5: Solve for x
   x = 651,871,345,610.25/366,423
6. Step 6: Final answer
   x = 1,779,013.18