Finding the Third Proportional to 67,663.50 and 153,039.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,663.50 : 153,039.75 = 153,039.75 : x
2. Step 2: Convert to fraction form
   67,663.50/153,039.75 = 153,039.75/x
3. Step 3: Cross multiply
   67,663.50x = 153,039.75 × 153,039.75
4. Step 4: Simplify right side
   67,663.50x = 23,421,165,080.06
5. Step 5: Solve for x
   x = 23,421,165,080.06/67,663.50
6. Step 6: Final answer
   x = 346,141.79