Finding the Third Proportional to 19,669.50 and 38,326.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,669.50 : 38,326.50 = 38,326.50 : x
2. Step 2: Convert to fraction form
   19,669.50/38,326.50 = 38,326.50/x
3. Step 3: Cross multiply
   19,669.50x = 38,326.50 × 38,326.50
4. Step 4: Simplify right side
   19,669.50x = 1,468,920,602.25
5. Step 5: Solve for x
   x = 1,468,920,602.25/19,669.50
6. Step 6: Final answer
   x = 74,680.12