Finding the Third Proportional to 2,665,185 and 4,216,557.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,185 : 4,216,557.75 = 4,216,557.75 : x
2. Step 2: Convert to fraction form
   2,665,185/4,216,557.75 = 4,216,557.75/x
3. Step 3: Cross multiply
   2,665,185x = 4,216,557.75 × 4,216,557.75
4. Step 4: Simplify right side
   2,665,185x = 17,779,359,259,085.06
5. Step 5: Solve for x
   x = 17,779,359,259,085.06/2,665,185
6. Step 6: Final answer
   x = 6,670,966.28