Finding the Third Proportional to 521,378 and 1,142,414

Step by Step Solution

1. Step 1: Write the proportion equation
   521,378 : 1,142,414 = 1,142,414 : x
2. Step 2: Convert to fraction form
   521,378/1,142,414 = 1,142,414/x
3. Step 3: Cross multiply
   521,378x = 1,142,414 × 1,142,414
4. Step 4: Simplify right side
   521,378x = 1,305,109,747,396
5. Step 5: Solve for x
   x = 1,305,109,747,396/521,378
6. Step 6: Final answer
   x = 2,503,192.98