Finding the Third Proportional to 1,240,868 and 1,990,875

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,868 : 1,990,875 = 1,990,875 : x
2. Step 2: Convert to fraction form
   1,240,868/1,990,875 = 1,990,875/x
3. Step 3: Cross multiply
   1,240,868x = 1,990,875 × 1,990,875
4. Step 4: Simplify right side
   1,240,868x = 3,963,583,265,625
5. Step 5: Solve for x
   x = 3,963,583,265,625/1,240,868
6. Step 6: Final answer
   x = 3,194,202.18