Finding the Third Proportional to 552,443 and 1,210,285

Step by Step Solution

1. Step 1: Write the proportion equation
   552,443 : 1,210,285 = 1,210,285 : x
2. Step 2: Convert to fraction form
   552,443/1,210,285 = 1,210,285/x
3. Step 3: Cross multiply
   552,443x = 1,210,285 × 1,210,285
4. Step 4: Simplify right side
   552,443x = 1,464,789,781,225
5. Step 5: Solve for x
   x = 1,464,789,781,225/552,443
6. Step 6: Final answer
   x = 2,651,476.77