Finding the Third Proportional to 3,623.63 and 7,938.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,623.63 : 7,938.56 = 7,938.56 : x
2. Step 2: Convert to fraction form
   3,623.63/7,938.56 = 7,938.56/x
3. Step 3: Cross multiply
   3,623.63x = 7,938.56 × 7,938.56
4. Step 4: Simplify right side
   3,623.63x = 63,020,774.57
5. Step 5: Solve for x
   x = 63,020,774.57/3,623.63
6. Step 6: Final answer
   x = 17,391.64