Finding the Third Proportional to 907,981 and 1,272,508

Step by Step Solution

1. Step 1: Write the proportion equation
   907,981 : 1,272,508 = 1,272,508 : x
2. Step 2: Convert to fraction form
   907,981/1,272,508 = 1,272,508/x
3. Step 3: Cross multiply
   907,981x = 1,272,508 × 1,272,508
4. Step 4: Simplify right side
   907,981x = 1,619,276,610,064
5. Step 5: Solve for x
   x = 1,619,276,610,064/907,981
6. Step 6: Final answer
   x = 1,783,381.60