Finding the Third Proportional to 1,440,072 and 3,151,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440,072 : 3,151,440 = 3,151,440 : x
2. Step 2: Convert to fraction form
   1,440,072/3,151,440 = 3,151,440/x
3. Step 3: Cross multiply
   1,440,072x = 3,151,440 × 3,151,440
4. Step 4: Simplify right side
   1,440,072x = 9,931,574,073,600
5. Step 5: Solve for x
   x = 9,931,574,073,600/1,440,072
6. Step 6: Final answer
   x = 6,896,581.61