Finding the Third Proportional to 521,370 and 1,142,397

Step by Step Solution

1. Step 1: Write the proportion equation
   521,370 : 1,142,397 = 1,142,397 : x
2. Step 2: Convert to fraction form
   521,370/1,142,397 = 1,142,397/x
3. Step 3: Cross multiply
   521,370x = 1,142,397 × 1,142,397
4. Step 4: Simplify right side
   521,370x = 1,305,070,905,609
5. Step 5: Solve for x
   x = 1,305,070,905,609/521,370
6. Step 6: Final answer
   x = 2,503,156.89