Finding the Third Proportional to 565,390 and 1,228,940

Step by Step Solution

1. Step 1: Write the proportion equation
   565,390 : 1,228,940 = 1,228,940 : x
2. Step 2: Convert to fraction form
   565,390/1,228,940 = 1,228,940/x
3. Step 3: Cross multiply
   565,390x = 1,228,940 × 1,228,940
4. Step 4: Simplify right side
   565,390x = 1,510,293,523,600
5. Step 5: Solve for x
   x = 1,510,293,523,600/565,390
6. Step 6: Final answer
   x = 2,671,242.02