Finding the Third Proportional to 133,866 and 215,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,866 : 215,230.50 = 215,230.50 : x
2. Step 2: Convert to fraction form
   133,866/215,230.50 = 215,230.50/x
3. Step 3: Cross multiply
   133,866x = 215,230.50 × 215,230.50
4. Step 4: Simplify right side
   133,866x = 46,324,168,130.25
5. Step 5: Solve for x
   x = 46,324,168,130.25/133,866
6. Step 6: Final answer
   x = 346,048.80