Finding the Third Proportional to 7,958,690 and 17,188,144

Step by Step Solution

1. Step 1: Write the proportion equation
   7,958,690 : 17,188,144 = 17,188,144 : x
2. Step 2: Convert to fraction form
   7,958,690/17,188,144 = 17,188,144/x
3. Step 3: Cross multiply
   7,958,690x = 17,188,144 × 17,188,144
4. Step 4: Simplify right side
   7,958,690x = 295,432,294,164,736
5. Step 5: Solve for x
   x = 295,432,294,164,736/7,958,690
6. Step 6: Final answer
   x = 37,120,718.88