Finding the Third Proportional to 768,492.56 and 1,146,496.78

Step by Step Solution

1. Step 1: Write the proportion equation
   768,492.56 : 1,146,496.78 = 1,146,496.78 : x
2. Step 2: Convert to fraction form
   768,492.56/1,146,496.78 = 1,146,496.78/x
3. Step 3: Cross multiply
   768,492.56x = 1,146,496.78 × 1,146,496.78
4. Step 4: Simplify right side
   768,492.56x = 1,314,454,869,416.61
5. Step 5: Solve for x
   x = 1,314,454,869,416.61/768,492.56
6. Step 6: Final answer
   x = 1,710,432.78