Finding the Third Proportional to 30,159 and 69,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,159 : 69,856.50 = 69,856.50 : x
2. Step 2: Convert to fraction form
   30,159/69,856.50 = 69,856.50/x
3. Step 3: Cross multiply
   30,159x = 69,856.50 × 69,856.50
4. Step 4: Simplify right side
   30,159x = 4,879,930,592.25
5. Step 5: Solve for x
   x = 4,879,930,592.25/30,159
6. Step 6: Final answer
   x = 161,806.78