Finding the Third Proportional to 1,215,870 and 1,824,453

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,870 : 1,824,453 = 1,824,453 : x
2. Step 2: Convert to fraction form
   1,215,870/1,824,453 = 1,824,453/x
3. Step 3: Cross multiply
   1,215,870x = 1,824,453 × 1,824,453
4. Step 4: Simplify right side
   1,215,870x = 3,328,628,749,209
5. Step 5: Solve for x
   x = 3,328,628,749,209/1,215,870
6. Step 6: Final answer
   x = 2,737,651.85