Finding the Third Proportional to 21,124.13 and 45,897.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,124.13 : 45,897.75 = 45,897.75 : x
2. Step 2: Convert to fraction form
   21,124.13/45,897.75 = 45,897.75/x
3. Step 3: Cross multiply
   21,124.13x = 45,897.75 × 45,897.75
4. Step 4: Simplify right side
   21,124.13x = 2,106,603,455.06
5. Step 5: Solve for x
   x = 2,106,603,455.06/21,124.13
6. Step 6: Final answer
   x = 99,725.00