Finding the Third Proportional to 111,579 and 156,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,579 : 156,064.50 = 156,064.50 : x
2. Step 2: Convert to fraction form
   111,579/156,064.50 = 156,064.50/x
3. Step 3: Cross multiply
   111,579x = 156,064.50 × 156,064.50
4. Step 4: Simplify right side
   111,579x = 24,356,128,160.25
5. Step 5: Solve for x
   x = 24,356,128,160.25/111,579
6. Step 6: Final answer
   x = 218,285.95