Finding the Third Proportional to 576,820 and 1,242,380

Step by Step Solution

1. Step 1: Write the proportion equation
   576,820 : 1,242,380 = 1,242,380 : x
2. Step 2: Convert to fraction form
   576,820/1,242,380 = 1,242,380/x
3. Step 3: Cross multiply
   576,820x = 1,242,380 × 1,242,380
4. Step 4: Simplify right side
   576,820x = 1,543,508,064,400
5. Step 5: Solve for x
   x = 1,543,508,064,400/576,820
6. Step 6: Final answer
   x = 2,675,892.07