Finding the Third Proportional to 1,380,840 and 1,865,592

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,840 : 1,865,592 = 1,865,592 : x
2. Step 2: Convert to fraction form
   1,380,840/1,865,592 = 1,865,592/x
3. Step 3: Cross multiply
   1,380,840x = 1,865,592 × 1,865,592
4. Step 4: Simplify right side
   1,380,840x = 3,480,433,510,464
5. Step 5: Solve for x
   x = 3,480,433,510,464/1,380,840
6. Step 6: Final answer
   x = 2,520,519.04