Finding the Third Proportional to 129,853 and 173,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,853 : 173,395.50 = 173,395.50 : x
2. Step 2: Convert to fraction form
   129,853/173,395.50 = 173,395.50/x
3. Step 3: Cross multiply
   129,853x = 173,395.50 × 173,395.50
4. Step 4: Simplify right side
   129,853x = 30,065,999,420.25
5. Step 5: Solve for x
   x = 30,065,999,420.25/129,853
6. Step 6: Final answer
   x = 231,538.74