Finding the Third Proportional to 1,138,400 and 1,710,624

Step by Step Solution

1. Step 1: Write the proportion equation
   1,138,400 : 1,710,624 = 1,710,624 : x
2. Step 2: Convert to fraction form
   1,138,400/1,710,624 = 1,710,624/x
3. Step 3: Cross multiply
   1,138,400x = 1,710,624 × 1,710,624
4. Step 4: Simplify right side
   1,138,400x = 2,926,234,469,376
5. Step 5: Solve for x
   x = 2,926,234,469,376/1,138,400
6. Step 6: Final answer
   x = 2,570,480.03