Finding the Third Proportional to 67,864 and 147,776

Step by Step Solution

1. Step 1: Write the proportion equation
   67,864 : 147,776 = 147,776 : x
2. Step 2: Convert to fraction form
   67,864/147,776 = 147,776/x
3. Step 3: Cross multiply
   67,864x = 147,776 × 147,776
4. Step 4: Simplify right side
   67,864x = 21,837,746,176
5. Step 5: Solve for x
   x = 21,837,746,176/67,864
6. Step 6: Final answer
   x = 321,786.90