Finding the Third Proportional to 588,078 and 879,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   588,078 : 879,766.50 = 879,766.50 : x
2. Step 2: Convert to fraction form
   588,078/879,766.50 = 879,766.50/x
3. Step 3: Cross multiply
   588,078x = 879,766.50 × 879,766.50
4. Step 4: Simplify right side
   588,078x = 773,989,094,522.25
5. Step 5: Solve for x
   x = 773,989,094,522.25/588,078
6. Step 6: Final answer
   x = 1,316,133.39