Finding the Third Proportional to 2,118,216 and 4,609,168

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,216 : 4,609,168 = 4,609,168 : x
2. Step 2: Convert to fraction form
   2,118,216/4,609,168 = 4,609,168/x
3. Step 3: Cross multiply
   2,118,216x = 4,609,168 × 4,609,168
4. Step 4: Simplify right side
   2,118,216x = 21,244,429,652,224
5. Step 5: Solve for x
   x = 21,244,429,652,224/2,118,216
6. Step 6: Final answer
   x = 10,029,397.22