Finding the Third Proportional to 21,511.54 and 45,978.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,511.54 : 45,978.86 = 45,978.86 : x
2. Step 2: Convert to fraction form
   21,511.54/45,978.86 = 45,978.86/x
3. Step 3: Cross multiply
   21,511.54x = 45,978.86 × 45,978.86
4. Step 4: Simplify right side
   21,511.54x = 2,114,055,428.04
5. Step 5: Solve for x
   x = 2,114,055,428.04/21,511.54
6. Step 6: Final answer
   x = 98,275.42