Finding the Third Proportional to 153,036 and 331,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,036 : 331,492.50 = 331,492.50 : x
2. Step 2: Convert to fraction form
   153,036/331,492.50 = 331,492.50/x
3. Step 3: Cross multiply
   153,036x = 331,492.50 × 331,492.50
4. Step 4: Simplify right side
   153,036x = 109,887,277,556.25
5. Step 5: Solve for x
   x = 109,887,277,556.25/153,036
6. Step 6: Final answer
   x = 718,048.55