Finding the Third Proportional to 45,603.63 and 72,850.64

Step by Step Solution

1. Step 1: Write the proportion equation
   45,603.63 : 72,850.64 = 72,850.64 : x
2. Step 2: Convert to fraction form
   45,603.63/72,850.64 = 72,850.64/x
3. Step 3: Cross multiply
   45,603.63x = 72,850.64 × 72,850.64
4. Step 4: Simplify right side
   45,603.63x = 5,307,215,839.47
5. Step 5: Solve for x
   x = 5,307,215,839.47/45,603.63
6. Step 6: Final answer
   x = 116,377.04