Finding the Third Proportional to 1,011,616.50 and 2,166,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,616.50 : 2,166,706.50 = 2,166,706.50 : x
2. Step 2: Convert to fraction form
   1,011,616.50/2,166,706.50 = 2,166,706.50/x
3. Step 3: Cross multiply
   1,011,616.50x = 2,166,706.50 × 2,166,706.50
4. Step 4: Simplify right side
   1,011,616.50x = 4,694,617,057,142.25
5. Step 5: Solve for x
   x = 4,694,617,057,142.25/1,011,616.50
6. Step 6: Final answer
   x = 4,640,708.27