Finding the Third Proportional to 558,231 and 1,210,983

Step by Step Solution

1. Step 1: Write the proportion equation
   558,231 : 1,210,983 = 1,210,983 : x
2. Step 2: Convert to fraction form
   558,231/1,210,983 = 1,210,983/x
3. Step 3: Cross multiply
   558,231x = 1,210,983 × 1,210,983
4. Step 4: Simplify right side
   558,231x = 1,466,479,826,289
5. Step 5: Solve for x
   x = 1,466,479,826,289/558,231
6. Step 6: Final answer
   x = 2,627,012.52