Finding the Third Proportional to 19,116.75 and 39,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,116.75 : 39,577.50 = 39,577.50 : x
2. Step 2: Convert to fraction form
   19,116.75/39,577.50 = 39,577.50/x
3. Step 3: Cross multiply
   19,116.75x = 39,577.50 × 39,577.50
4. Step 4: Simplify right side
   19,116.75x = 1,566,378,506.25
5. Step 5: Solve for x
   x = 1,566,378,506.25/19,116.75
6. Step 6: Final answer
   x = 81,937.49