Finding the Third Proportional to 45,279 and 69,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,279 : 69,970.50 = 69,970.50 : x
2. Step 2: Convert to fraction form
   45,279/69,970.50 = 69,970.50/x
3. Step 3: Cross multiply
   45,279x = 69,970.50 × 69,970.50
4. Step 4: Simplify right side
   45,279x = 4,895,870,870.25
5. Step 5: Solve for x
   x = 4,895,870,870.25/45,279
6. Step 6: Final answer
   x = 108,126.74