Finding the Third Proportional to 19,259.50 and 42,063.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,259.50 : 42,063.75 = 42,063.75 : x
2. Step 2: Convert to fraction form
   19,259.50/42,063.75 = 42,063.75/x
3. Step 3: Cross multiply
   19,259.50x = 42,063.75 × 42,063.75
4. Step 4: Simplify right side
   19,259.50x = 1,769,359,064.06
5. Step 5: Solve for x
   x = 1,769,359,064.06/19,259.50
6. Step 6: Final answer
   x = 91,869.42