Finding the Third Proportional to 917,588 and 2,159,156

Step by Step Solution

1. Step 1: Write the proportion equation
   917,588 : 2,159,156 = 2,159,156 : x
2. Step 2: Convert to fraction form
   917,588/2,159,156 = 2,159,156/x
3. Step 3: Cross multiply
   917,588x = 2,159,156 × 2,159,156
4. Step 4: Simplify right side
   917,588x = 4,661,954,632,336
5. Step 5: Solve for x
   x = 4,661,954,632,336/917,588
6. Step 6: Final answer
   x = 5,080,662.16