Finding the Third Proportional to 134,554 and 208,342.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,554 : 208,342.50 = 208,342.50 : x
2. Step 2: Convert to fraction form
   134,554/208,342.50 = 208,342.50/x
3. Step 3: Cross multiply
   134,554x = 208,342.50 × 208,342.50
4. Step 4: Simplify right side
   134,554x = 43,406,597,306.25
5. Step 5: Solve for x
   x = 43,406,597,306.25/134,554
6. Step 6: Final answer
   x = 322,596.11