Finding the Third Proportional to 578,274 and 1,253,082

Step by Step Solution

1. Step 1: Write the proportion equation
   578,274 : 1,253,082 = 1,253,082 : x
2. Step 2: Convert to fraction form
   578,274/1,253,082 = 1,253,082/x
3. Step 3: Cross multiply
   578,274x = 1,253,082 × 1,253,082
4. Step 4: Simplify right side
   578,274x = 1,570,214,498,724
5. Step 5: Solve for x
   x = 1,570,214,498,724/578,274
6. Step 6: Final answer
   x = 2,715,346.87