Finding the Third Proportional to 67,457.81 and 148,498.31

Step by Step Solution

1. Step 1: Write the proportion equation
   67,457.81 : 148,498.31 = 148,498.31 : x
2. Step 2: Convert to fraction form
   67,457.81/148,498.31 = 148,498.31/x
3. Step 3: Cross multiply
   67,457.81x = 148,498.31 × 148,498.31
4. Step 4: Simplify right side
   67,457.81x = 22,051,748,815.35
5. Step 5: Solve for x
   x = 22,051,748,815.35/67,457.81
6. Step 6: Final answer
   x = 326,896.89