Finding the Third Proportional to 561,185 and 1,227,345

Step by Step Solution

1. Step 1: Write the proportion equation
   561,185 : 1,227,345 = 1,227,345 : x
2. Step 2: Convert to fraction form
   561,185/1,227,345 = 1,227,345/x
3. Step 3: Cross multiply
   561,185x = 1,227,345 × 1,227,345
4. Step 4: Simplify right side
   561,185x = 1,506,375,749,025
5. Step 5: Solve for x
   x = 1,506,375,749,025/561,185
6. Step 6: Final answer
   x = 2,684,276.57