Finding the Third Proportional to 17,858,940.75 and 39,123,020.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,858,940.75 : 39,123,020.25 = 39,123,020.25 : x
2. Step 2: Convert to fraction form
   17,858,940.75/39,123,020.25 = 39,123,020.25/x
3. Step 3: Cross multiply
   17,858,940.75x = 39,123,020.25 × 39,123,020.25
4. Step 4: Simplify right side
   17,858,940.75x = 1,530,610,713,481,910
5. Step 5: Solve for x
   x = 1,530,610,713,481,910/17,858,940.75
6. Step 6: Final answer
   x = 85,705,570.95