Finding the Third Proportional to 11,213,880 and 17,042,436

Step by Step Solution

1. Step 1: Write the proportion equation
   11,213,880 : 17,042,436 = 17,042,436 : x
2. Step 2: Convert to fraction form
   11,213,880/17,042,436 = 17,042,436/x
3. Step 3: Cross multiply
   11,213,880x = 17,042,436 × 17,042,436
4. Step 4: Simplify right side
   11,213,880x = 290,444,624,814,096
5. Step 5: Solve for x
   x = 290,444,624,814,096/11,213,880
6. Step 6: Final answer
   x = 25,900,457.72