Finding the Third Proportional to 134,432 and 206,347.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,432 : 206,347.50 = 206,347.50 : x
2. Step 2: Convert to fraction form
   134,432/206,347.50 = 206,347.50/x
3. Step 3: Cross multiply
   134,432x = 206,347.50 × 206,347.50
4. Step 4: Simplify right side
   134,432x = 42,579,290,756.25
5. Step 5: Solve for x
   x = 42,579,290,756.25/134,432
6. Step 6: Final answer
   x = 316,734.79