Finding the Third Proportional to 64,613.25 and 137,043

Step by Step Solution

1. Step 1: Write the proportion equation
   64,613.25 : 137,043 = 137,043 : x
2. Step 2: Convert to fraction form
   64,613.25/137,043 = 137,043/x
3. Step 3: Cross multiply
   64,613.25x = 137,043 × 137,043
4. Step 4: Simplify right side
   64,613.25x = 18,780,783,849
5. Step 5: Solve for x
   x = 18,780,783,849/64,613.25
6. Step 6: Final answer
   x = 290,664.59