Finding the Third Proportional to 1,865,396 and 4,016,188

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,396 : 4,016,188 = 4,016,188 : x
2. Step 2: Convert to fraction form
   1,865,396/4,016,188 = 4,016,188/x
3. Step 3: Cross multiply
   1,865,396x = 4,016,188 × 4,016,188
4. Step 4: Simplify right side
   1,865,396x = 16,129,766,051,344
5. Step 5: Solve for x
   x = 16,129,766,051,344/1,865,396
6. Step 6: Final answer
   x = 8,646,832.12