Finding the Third Proportional to 142,653 and 220,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,653 : 220,773.50 = 220,773.50 : x
2. Step 2: Convert to fraction form
   142,653/220,773.50 = 220,773.50/x
3. Step 3: Cross multiply
   142,653x = 220,773.50 × 220,773.50
4. Step 4: Simplify right side
   142,653x = 48,740,938,302.25
5. Step 5: Solve for x
   x = 48,740,938,302.25/142,653
6. Step 6: Final answer
   x = 341,674.82