Finding the Third Proportional to 1,916,218 and 4,172,635

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,218 : 4,172,635 = 4,172,635 : x
2. Step 2: Convert to fraction form
   1,916,218/4,172,635 = 4,172,635/x
3. Step 3: Cross multiply
   1,916,218x = 4,172,635 × 4,172,635
4. Step 4: Simplify right side
   1,916,218x = 17,410,882,843,225
5. Step 5: Solve for x
   x = 17,410,882,843,225/1,916,218
6. Step 6: Final answer
   x = 9,086,065.80