Finding the Third Proportional to 1,926,384 and 4,218,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926,384 : 4,218,168 = 4,218,168 : x
2. Step 2: Convert to fraction form
   1,926,384/4,218,168 = 4,218,168/x
3. Step 3: Cross multiply
   1,926,384x = 4,218,168 × 4,218,168
4. Step 4: Simplify right side
   1,926,384x = 17,792,941,276,224
5. Step 5: Solve for x
   x = 17,792,941,276,224/1,926,384
6. Step 6: Final answer
   x = 9,236,445.73