Finding the Third Proportional to 134,429 and 206,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,429 : 206,343.50 = 206,343.50 : x
2. Step 2: Convert to fraction form
   134,429/206,343.50 = 206,343.50/x
3. Step 3: Cross multiply
   134,429x = 206,343.50 × 206,343.50
4. Step 4: Simplify right side
   134,429x = 42,577,639,992.25
5. Step 5: Solve for x
   x = 42,577,639,992.25/134,429
6. Step 6: Final answer
   x = 316,729.57