Finding the Third Proportional to 165,555 and 346,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   165,555 : 346,099.50 = 346,099.50 : x
2. Step 2: Convert to fraction form
   165,555/346,099.50 = 346,099.50/x
3. Step 3: Cross multiply
   165,555x = 346,099.50 × 346,099.50
4. Step 4: Simplify right side
   165,555x = 119,784,863,900.25
5. Step 5: Solve for x
   x = 119,784,863,900.25/165,555
6. Step 6: Final answer
   x = 723,535.16