Finding the Third Proportional to 326,160 and 718,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,160 : 718,537.50 = 718,537.50 : x
2. Step 2: Convert to fraction form
   326,160/718,537.50 = 718,537.50/x
3. Step 3: Cross multiply
   326,160x = 718,537.50 × 718,537.50
4. Step 4: Simplify right side
   326,160x = 516,296,138,906.25
5. Step 5: Solve for x
   x = 516,296,138,906.25/326,160
6. Step 6: Final answer
   x = 1,582,953.58