Finding the Third Proportional to 1,115,472 and 1,706,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,472 : 1,706,688 = 1,706,688 : x
2. Step 2: Convert to fraction form
   1,115,472/1,706,688 = 1,706,688/x
3. Step 3: Cross multiply
   1,115,472x = 1,706,688 × 1,706,688
4. Step 4: Simplify right side
   1,115,472x = 2,912,783,929,344
5. Step 5: Solve for x
   x = 2,912,783,929,344/1,115,472
6. Step 6: Final answer
   x = 2,611,256.88