Finding the Third Proportional to 19,308.18 and 39,856.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,308.18 : 39,856.15 = 39,856.15 : x
2. Step 2: Convert to fraction form
   19,308.18/39,856.15 = 39,856.15/x
3. Step 3: Cross multiply
   19,308.18x = 39,856.15 × 39,856.15
4. Step 4: Simplify right side
   19,308.18x = 1,588,512,918.57
5. Step 5: Solve for x
   x = 1,588,512,918.57/19,308.18
6. Step 6: Final answer
   x = 82,271.51