Finding the Third Proportional to 865,156 and 1,157,274

Step by Step Solution

1. Step 1: Write the proportion equation
   865,156 : 1,157,274 = 1,157,274 : x
2. Step 2: Convert to fraction form
   865,156/1,157,274 = 1,157,274/x
3. Step 3: Cross multiply
   865,156x = 1,157,274 × 1,157,274
4. Step 4: Simplify right side
   865,156x = 1,339,283,111,076
5. Step 5: Solve for x
   x = 1,339,283,111,076/865,156
6. Step 6: Final answer
   x = 1,548,024.99