Finding the Third Proportional to 19,476.37 and 42,066.65

Step by Step Solution

1. Step 1: Write the proportion equation
   19,476.37 : 42,066.65 = 42,066.65 : x
2. Step 2: Convert to fraction form
   19,476.37/42,066.65 = 42,066.65/x
3. Step 3: Cross multiply
   19,476.37x = 42,066.65 × 42,066.65
4. Step 4: Simplify right side
   19,476.37x = 1,769,602,705.36
5. Step 5: Solve for x
   x = 1,769,602,705.36/19,476.37
6. Step 6: Final answer
   x = 90,858.97