Finding the Third Proportional to 869,766 and 1,224,819

Step by Step Solution

1. Step 1: Write the proportion equation
   869,766 : 1,224,819 = 1,224,819 : x
2. Step 2: Convert to fraction form
   869,766/1,224,819 = 1,224,819/x
3. Step 3: Cross multiply
   869,766x = 1,224,819 × 1,224,819
4. Step 4: Simplify right side
   869,766x = 1,500,181,582,761
5. Step 5: Solve for x
   x = 1,500,181,582,761/869,766
6. Step 6: Final answer
   x = 1,724,810.56