Finding the Third Proportional to 521,355 and 1,142,361

Step by Step Solution

1. Step 1: Write the proportion equation
   521,355 : 1,142,361 = 1,142,361 : x
2. Step 2: Convert to fraction form
   521,355/1,142,361 = 1,142,361/x
3. Step 3: Cross multiply
   521,355x = 1,142,361 × 1,142,361
4. Step 4: Simplify right side
   521,355x = 1,304,988,654,321
5. Step 5: Solve for x
   x = 1,304,988,654,321/521,355
6. Step 6: Final answer
   x = 2,503,071.14