Finding the Third Proportional to 2,611,880 and 5,488,144

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611,880 : 5,488,144 = 5,488,144 : x
2. Step 2: Convert to fraction form
   2,611,880/5,488,144 = 5,488,144/x
3. Step 3: Cross multiply
   2,611,880x = 5,488,144 × 5,488,144
4. Step 4: Simplify right side
   2,611,880x = 30,119,724,564,736
5. Step 5: Solve for x
   x = 30,119,724,564,736/2,611,880
6. Step 6: Final answer
   x = 11,531,817.91