Finding the Third Proportional to 578,312 and 1,253,150

Step by Step Solution

1. Step 1: Write the proportion equation
   578,312 : 1,253,150 = 1,253,150 : x
2. Step 2: Convert to fraction form
   578,312/1,253,150 = 1,253,150/x
3. Step 3: Cross multiply
   578,312x = 1,253,150 × 1,253,150
4. Step 4: Simplify right side
   578,312x = 1,570,384,922,500
5. Step 5: Solve for x
   x = 1,570,384,922,500/578,312
6. Step 6: Final answer
   x = 2,715,463.15