Finding the Third Proportional to 538,850 and 845,292.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,850 : 845,292.50 = 845,292.50 : x
2. Step 2: Convert to fraction form
   538,850/845,292.50 = 845,292.50/x
3. Step 3: Cross multiply
   538,850x = 845,292.50 × 845,292.50
4. Step 4: Simplify right side
   538,850x = 714,519,410,556.25
5. Step 5: Solve for x
   x = 714,519,410,556.25/538,850
6. Step 6: Final answer
   x = 1,326,008.00