Finding the Third Proportional to 567,999 and 1,215,786

Step by Step Solution

1. Step 1: Write the proportion equation
   567,999 : 1,215,786 = 1,215,786 : x
2. Step 2: Convert to fraction form
   567,999/1,215,786 = 1,215,786/x
3. Step 3: Cross multiply
   567,999x = 1,215,786 × 1,215,786
4. Step 4: Simplify right side
   567,999x = 1,478,135,597,796
5. Step 5: Solve for x
   x = 1,478,135,597,796/567,999
6. Step 6: Final answer
   x = 2,602,355.99