Finding the Third Proportional to 538,436 and 833,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,436 : 833,615.50 = 833,615.50 : x
2. Step 2: Convert to fraction form
   538,436/833,615.50 = 833,615.50/x
3. Step 3: Cross multiply
   538,436x = 833,615.50 × 833,615.50
4. Step 4: Simplify right side
   538,436x = 694,914,801,840.25
5. Step 5: Solve for x
   x = 694,914,801,840.25/538,436
6. Step 6: Final answer
   x = 1,290,617.27