Finding the Third Proportional to 578,272 and 1,253,078

Step by Step Solution

1. Step 1: Write the proportion equation
   578,272 : 1,253,078 = 1,253,078 : x
2. Step 2: Convert to fraction form
   578,272/1,253,078 = 1,253,078/x
3. Step 3: Cross multiply
   578,272x = 1,253,078 × 1,253,078
4. Step 4: Simplify right side
   578,272x = 1,570,204,474,084
5. Step 5: Solve for x
   x = 1,570,204,474,084/578,272
6. Step 6: Final answer
   x = 2,715,338.93