Finding the Third Proportional to 1,978,340 and 2,976,790

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,340 : 2,976,790 = 2,976,790 : x
2. Step 2: Convert to fraction form
   1,978,340/2,976,790 = 2,976,790/x
3. Step 3: Cross multiply
   1,978,340x = 2,976,790 × 2,976,790
4. Step 4: Simplify right side
   1,978,340x = 8,861,278,704,100
5. Step 5: Solve for x
   x = 8,861,278,704,100/1,978,340
6. Step 6: Final answer
   x = 4,479,148.53