Finding the Third Proportional to 20,897.63 and 45,603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,897.63 : 45,603.38 = 45,603.38 : x
2. Step 2: Convert to fraction form
   20,897.63/45,603.38 = 45,603.38/x
3. Step 3: Cross multiply
   20,897.63x = 45,603.38 × 45,603.38
4. Step 4: Simplify right side
   20,897.63x = 2,079,667,811.39
5. Step 5: Solve for x
   x = 2,079,667,811.39/20,897.63
6. Step 6: Final answer
   x = 99,516.95