Finding the Third Proportional to 19,678.25 and 42,466.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,678.25 : 42,466.25 = 42,466.25 : x
2. Step 2: Convert to fraction form
   19,678.25/42,466.25 = 42,466.25/x
3. Step 3: Cross multiply
   19,678.25x = 42,466.25 × 42,466.25
4. Step 4: Simplify right side
   19,678.25x = 1,803,382,389.06
5. Step 5: Solve for x
   x = 1,803,382,389.06/19,678.25
6. Step 6: Final answer
   x = 91,643.43