Finding the Third Proportional to 581,238 and 1,231,620

Step by Step Solution

1. Step 1: Write the proportion equation
   581,238 : 1,231,620 = 1,231,620 : x
2. Step 2: Convert to fraction form
   581,238/1,231,620 = 1,231,620/x
3. Step 3: Cross multiply
   581,238x = 1,231,620 × 1,231,620
4. Step 4: Simplify right side
   581,238x = 1,516,887,824,400
5. Step 5: Solve for x
   x = 1,516,887,824,400/581,238
6. Step 6: Final answer
   x = 2,609,753.36