Finding the Third Proportional to 1,017,888 and 2,211,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,888 : 2,211,168 = 2,211,168 : x
2. Step 2: Convert to fraction form
   1,017,888/2,211,168 = 2,211,168/x
3. Step 3: Cross multiply
   1,017,888x = 2,211,168 × 2,211,168
4. Step 4: Simplify right side
   1,017,888x = 4,889,263,924,224
5. Step 5: Solve for x
   x = 4,889,263,924,224/1,017,888
6. Step 6: Final answer
   x = 4,803,341.75