Finding the Third Proportional to 2,530,220 and 5,509,680

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530,220 : 5,509,680 = 5,509,680 : x
2. Step 2: Convert to fraction form
   2,530,220/5,509,680 = 5,509,680/x
3. Step 3: Cross multiply
   2,530,220x = 5,509,680 × 5,509,680
4. Step 4: Simplify right side
   2,530,220x = 30,356,573,702,400
5. Step 5: Solve for x
   x = 30,356,573,702,400/2,530,220
6. Step 6: Final answer
   x = 11,997,602.46