Finding the Third Proportional to 108,742.50 and 162,603

Step by Step Solution

1. Step 1: Write the proportion equation
   108,742.50 : 162,603 = 162,603 : x
2. Step 2: Convert to fraction form
   108,742.50/162,603 = 162,603/x
3. Step 3: Cross multiply
   108,742.50x = 162,603 × 162,603
4. Step 4: Simplify right side
   108,742.50x = 26,439,735,609
5. Step 5: Solve for x
   x = 26,439,735,609/108,742.50
6. Step 6: Final answer
   x = 243,140.77