Finding the Third Proportional to 5,739,513 and 12,487,890

Step by Step Solution

1. Step 1: Write the proportion equation
   5,739,513 : 12,487,890 = 12,487,890 : x
2. Step 2: Convert to fraction form
   5,739,513/12,487,890 = 12,487,890/x
3. Step 3: Cross multiply
   5,739,513x = 12,487,890 × 12,487,890
4. Step 4: Simplify right side
   5,739,513x = 155,947,396,652,100
5. Step 5: Solve for x
   x = 155,947,396,652,100/5,739,513
6. Step 6: Final answer
   x = 27,170,841.26