Finding the Third Proportional to 19,827.56 and 42,921.94

Step by Step Solution

1. Step 1: Write the proportion equation
   19,827.56 : 42,921.94 = 42,921.94 : x
2. Step 2: Convert to fraction form
   19,827.56/42,921.94 = 42,921.94/x
3. Step 3: Cross multiply
   19,827.56x = 42,921.94 × 42,921.94
4. Step 4: Simplify right side
   19,827.56x = 1,842,292,718.75
5. Step 5: Solve for x
   x = 1,842,292,718.75/19,827.56
6. Step 6: Final answer
   x = 92,915.74