Finding the Third Proportional to 763,156 and 1,208,156

Step by Step Solution

1. Step 1: Write the proportion equation
   763,156 : 1,208,156 = 1,208,156 : x
2. Step 2: Convert to fraction form
   763,156/1,208,156 = 1,208,156/x
3. Step 3: Cross multiply
   763,156x = 1,208,156 × 1,208,156
4. Step 4: Simplify right side
   763,156x = 1,459,640,920,336
5. Step 5: Solve for x
   x = 1,459,640,920,336/763,156
6. Step 6: Final answer
   x = 1,912,637.68