Finding the Third Proportional to 120,693 and 168,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,693 : 168,816.50 = 168,816.50 : x
2. Step 2: Convert to fraction form
   120,693/168,816.50 = 168,816.50/x
3. Step 3: Cross multiply
   120,693x = 168,816.50 × 168,816.50
4. Step 4: Simplify right side
   120,693x = 28,499,010,672.25
5. Step 5: Solve for x
   x = 28,499,010,672.25/120,693
6. Step 6: Final answer
   x = 236,128.12