Finding the Third Proportional to 67,900.50 and 99,770

Step by Step Solution

1. Step 1: Write the proportion equation
   67,900.50 : 99,770 = 99,770 : x
2. Step 2: Convert to fraction form
   67,900.50/99,770 = 99,770/x
3. Step 3: Cross multiply
   67,900.50x = 99,770 × 99,770
4. Step 4: Simplify right side
   67,900.50x = 9,954,052,900
5. Step 5: Solve for x
   x = 9,954,052,900/67,900.50
6. Step 6: Final answer
   x = 146,597.64