Finding the Third Proportional to 509,300 and 1,079,312

Step by Step Solution

1. Step 1: Write the proportion equation
   509,300 : 1,079,312 = 1,079,312 : x
2. Step 2: Convert to fraction form
   509,300/1,079,312 = 1,079,312/x
3. Step 3: Cross multiply
   509,300x = 1,079,312 × 1,079,312
4. Step 4: Simplify right side
   509,300x = 1,164,914,393,344
5. Step 5: Solve for x
   x = 1,164,914,393,344/509,300
6. Step 6: Final answer
   x = 2,287,285.28