Finding the Third Proportional to 365,418 and 797,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   365,418 : 797,242.50 = 797,242.50 : x
2. Step 2: Convert to fraction form
   365,418/797,242.50 = 797,242.50/x
3. Step 3: Cross multiply
   365,418x = 797,242.50 × 797,242.50
4. Step 4: Simplify right side
   365,418x = 635,595,603,806.25
5. Step 5: Solve for x
   x = 635,595,603,806.25/365,418
6. Step 6: Final answer
   x = 1,739,365.89