Finding the Third Proportional to 1,780,716 and 4,199,340

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,716 : 4,199,340 = 4,199,340 : x
2. Step 2: Convert to fraction form
   1,780,716/4,199,340 = 4,199,340/x
3. Step 3: Cross multiply
   1,780,716x = 4,199,340 × 4,199,340
4. Step 4: Simplify right side
   1,780,716x = 17,634,456,435,600
5. Step 5: Solve for x
   x = 17,634,456,435,600/1,780,716
6. Step 6: Final answer
   x = 9,903,014.54