Finding the Third Proportional to 162,542 and 215,673.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,542 : 215,673.50 = 215,673.50 : x
2. Step 2: Convert to fraction form
   162,542/215,673.50 = 215,673.50/x
3. Step 3: Cross multiply
   162,542x = 215,673.50 × 215,673.50
4. Step 4: Simplify right side
   162,542x = 46,515,058,602.25
5. Step 5: Solve for x
   x = 46,515,058,602.25/162,542
6. Step 6: Final answer
   x = 286,172.55