Finding the Third Proportional to 538,420 and 844,741.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,420 : 844,741.50 = 844,741.50 : x
2. Step 2: Convert to fraction form
   538,420/844,741.50 = 844,741.50/x
3. Step 3: Cross multiply
   538,420x = 844,741.50 × 844,741.50
4. Step 4: Simplify right side
   538,420x = 713,588,201,822.25
5. Step 5: Solve for x
   x = 713,588,201,822.25/538,420
6. Step 6: Final answer
   x = 1,325,337.47