Finding the Third Proportional to 538,926 and 845,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,926 : 845,416.50 = 845,416.50 : x
2. Step 2: Convert to fraction form
   538,926/845,416.50 = 845,416.50/x
3. Step 3: Cross multiply
   538,926x = 845,416.50 × 845,416.50
4. Step 4: Simplify right side
   538,926x = 714,729,058,472.25
5. Step 5: Solve for x
   x = 714,729,058,472.25/538,926
6. Step 6: Final answer
   x = 1,326,210.01