Finding the Third Proportional to 19,420.50 and 42,648

Step by Step Solution

1. Step 1: Write the proportion equation
   19,420.50 : 42,648 = 42,648 : x
2. Step 2: Convert to fraction form
   19,420.50/42,648 = 42,648/x
3. Step 3: Cross multiply
   19,420.50x = 42,648 × 42,648
4. Step 4: Simplify right side
   19,420.50x = 1,818,851,904
5. Step 5: Solve for x
   x = 1,818,851,904/19,420.50
6. Step 6: Final answer
   x = 93,656.29