Finding the Third Proportional to 739,431 and 1,513,890

Step by Step Solution

1. Step 1: Write the proportion equation
   739,431 : 1,513,890 = 1,513,890 : x
2. Step 2: Convert to fraction form
   739,431/1,513,890 = 1,513,890/x
3. Step 3: Cross multiply
   739,431x = 1,513,890 × 1,513,890
4. Step 4: Simplify right side
   739,431x = 2,291,862,932,100
5. Step 5: Solve for x
   x = 2,291,862,932,100/739,431
6. Step 6: Final answer
   x = 3,099,495.33