Finding the Third Proportional to 2,185,218 and 4,457,106

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,218 : 4,457,106 = 4,457,106 : x
2. Step 2: Convert to fraction form
   2,185,218/4,457,106 = 4,457,106/x
3. Step 3: Cross multiply
   2,185,218x = 4,457,106 × 4,457,106
4. Step 4: Simplify right side
   2,185,218x = 19,865,793,895,236
5. Step 5: Solve for x
   x = 19,865,793,895,236/2,185,218
6. Step 6: Final answer
   x = 9,090,989.50