Finding the Third Proportional to 111,562 and 156,399

Step by Step Solution

1. Step 1: Write the proportion equation
   111,562 : 156,399 = 156,399 : x
2. Step 2: Convert to fraction form
   111,562/156,399 = 156,399/x
3. Step 3: Cross multiply
   111,562x = 156,399 × 156,399
4. Step 4: Simplify right side
   111,562x = 24,460,647,201
5. Step 5: Solve for x
   x = 24,460,647,201/111,562
6. Step 6: Final answer
   x = 219,256.08