Finding the Third Proportional to 352,443 and 528,772.50

Step by Step Solution

1. Step 1: Write the proportion equation
   352,443 : 528,772.50 = 528,772.50 : x
2. Step 2: Convert to fraction form
   352,443/528,772.50 = 528,772.50/x
3. Step 3: Cross multiply
   352,443x = 528,772.50 × 528,772.50
4. Step 4: Simplify right side
   352,443x = 279,600,356,756.25
5. Step 5: Solve for x
   x = 279,600,356,756.25/352,443
6. Step 6: Final answer
   x = 793,320.78