Finding the Third Proportional to 569,698 and 1,215,644

Step by Step Solution

1. Step 1: Write the proportion equation
   569,698 : 1,215,644 = 1,215,644 : x
2. Step 2: Convert to fraction form
   569,698/1,215,644 = 1,215,644/x
3. Step 3: Cross multiply
   569,698x = 1,215,644 × 1,215,644
4. Step 4: Simplify right side
   569,698x = 1,477,790,334,736
5. Step 5: Solve for x
   x = 1,477,790,334,736/569,698
6. Step 6: Final answer
   x = 2,593,988.98