Finding the Third Proportional to 19,428.75 and 42,504.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,428.75 : 42,504.75 = 42,504.75 : x
2. Step 2: Convert to fraction form
   19,428.75/42,504.75 = 42,504.75/x
3. Step 3: Cross multiply
   19,428.75x = 42,504.75 × 42,504.75
4. Step 4: Simplify right side
   19,428.75x = 1,806,653,772.56
5. Step 5: Solve for x
   x = 1,806,653,772.56/19,428.75
6. Step 6: Final answer
   x = 92,988.68