Finding the Third Proportional to 10,917,144 and 17,123,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,917,144 : 17,123,674.50 = 17,123,674.50 : x
2. Step 2: Convert to fraction form
   10,917,144/17,123,674.50 = 17,123,674.50/x
3. Step 3: Cross multiply
   10,917,144x = 17,123,674.50 × 17,123,674.50
4. Step 4: Simplify right side
   10,917,144x = 293,220,228,381,950.25
5. Step 5: Solve for x
   x = 293,220,228,381,950.25/10,917,144
6. Step 6: Final answer
   x = 26,858,693.85