Finding the Third Proportional to 19,700 and 42,168.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,700 : 42,168.25 = 42,168.25 : x
2. Step 2: Convert to fraction form
   19,700/42,168.25 = 42,168.25/x
3. Step 3: Cross multiply
   19,700x = 42,168.25 × 42,168.25
4. Step 4: Simplify right side
   19,700x = 1,778,161,308.06
5. Step 5: Solve for x
   x = 1,778,161,308.06/19,700
6. Step 6: Final answer
   x = 90,262.00