Finding the Third Proportional to 11,137,540 and 17,722,158

Step by Step Solution

1. Step 1: Write the proportion equation
   11,137,540 : 17,722,158 = 17,722,158 : x
2. Step 2: Convert to fraction form
   11,137,540/17,722,158 = 17,722,158/x
3. Step 3: Cross multiply
   11,137,540x = 17,722,158 × 17,722,158
4. Step 4: Simplify right side
   11,137,540x = 314,074,884,176,964
5. Step 5: Solve for x
   x = 314,074,884,176,964/11,137,540
6. Step 6: Final answer
   x = 28,199,663.86