Finding the Third Proportional to 153,036.50 and 331,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,036.50 : 331,005.50 = 331,005.50 : x
2. Step 2: Convert to fraction form
   153,036.50/331,005.50 = 331,005.50/x
3. Step 3: Cross multiply
   153,036.50x = 331,005.50 × 331,005.50
4. Step 4: Simplify right side
   153,036.50x = 109,564,641,030.25
5. Step 5: Solve for x
   x = 109,564,641,030.25/153,036.50
6. Step 6: Final answer
   x = 715,937.97