Finding the Third Proportional to 538,587 and 836,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,587 : 836,320.50 = 836,320.50 : x
2. Step 2: Convert to fraction form
   538,587/836,320.50 = 836,320.50/x
3. Step 3: Cross multiply
   538,587x = 836,320.50 × 836,320.50
4. Step 4: Simplify right side
   538,587x = 699,431,978,720.25
5. Step 5: Solve for x
   x = 699,431,978,720.25/538,587
6. Step 6: Final answer
   x = 1,298,642.52