Finding the Third Proportional to 521,388 and 1,142,436

Step by Step Solution

1. Step 1: Write the proportion equation
   521,388 : 1,142,436 = 1,142,436 : x
2. Step 2: Convert to fraction form
   521,388/1,142,436 = 1,142,436/x
3. Step 3: Cross multiply
   521,388x = 1,142,436 × 1,142,436
4. Step 4: Simplify right side
   521,388x = 1,305,160,014,096
5. Step 5: Solve for x
   x = 1,305,160,014,096/521,388
6. Step 6: Final answer
   x = 2,503,241.38