Finding the Third Proportional to 69,080.50 and 149,051

Step by Step Solution

1. Step 1: Write the proportion equation
   69,080.50 : 149,051 = 149,051 : x
2. Step 2: Convert to fraction form
   69,080.50/149,051 = 149,051/x
3. Step 3: Cross multiply
   69,080.50x = 149,051 × 149,051
4. Step 4: Simplify right side
   69,080.50x = 22,216,200,601
5. Step 5: Solve for x
   x = 22,216,200,601/69,080.50
6. Step 6: Final answer
   x = 321,598.72