Finding the Third Proportional to 142,213 and 229,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,213 : 229,087.50 = 229,087.50 : x
2. Step 2: Convert to fraction form
   142,213/229,087.50 = 229,087.50/x
3. Step 3: Cross multiply
   142,213x = 229,087.50 × 229,087.50
4. Step 4: Simplify right side
   142,213x = 52,481,082,656.25
5. Step 5: Solve for x
   x = 52,481,082,656.25/142,213
6. Step 6: Final answer
   x = 369,031.54