Finding the Third Proportional to 2,640,109 and 5,482,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640,109 : 5,482,553.50 = 5,482,553.50 : x
2. Step 2: Convert to fraction form
   2,640,109/5,482,553.50 = 5,482,553.50/x
3. Step 3: Cross multiply
   2,640,109x = 5,482,553.50 × 5,482,553.50
4. Step 4: Simplify right side
   2,640,109x = 30,058,392,880,362.25
5. Step 5: Solve for x
   x = 30,058,392,880,362.25/2,640,109
6. Step 6: Final answer
   x = 11,385,284.80