Finding the Third Proportional to 530,158 and 1,139,420

Step by Step Solution

1. Step 1: Write the proportion equation
   530,158 : 1,139,420 = 1,139,420 : x
2. Step 2: Convert to fraction form
   530,158/1,139,420 = 1,139,420/x
3. Step 3: Cross multiply
   530,158x = 1,139,420 × 1,139,420
4. Step 4: Simplify right side
   530,158x = 1,298,277,936,400
5. Step 5: Solve for x
   x = 1,298,277,936,400/530,158
6. Step 6: Final answer
   x = 2,448,850.98