Finding the Third Proportional to 3,091,578 and 4,671,210

Step by Step Solution

1. Step 1: Write the proportion equation
   3,091,578 : 4,671,210 = 4,671,210 : x
2. Step 2: Convert to fraction form
   3,091,578/4,671,210 = 4,671,210/x
3. Step 3: Cross multiply
   3,091,578x = 4,671,210 × 4,671,210
4. Step 4: Simplify right side
   3,091,578x = 21,820,202,864,100
5. Step 5: Solve for x
   x = 21,820,202,864,100/3,091,578
6. Step 6: Final answer
   x = 7,057,949.97