Finding the Third Proportional to 331,887 and 512,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,887 : 512,536.50 = 512,536.50 : x
2. Step 2: Convert to fraction form
   331,887/512,536.50 = 512,536.50/x
3. Step 3: Cross multiply
   331,887x = 512,536.50 × 512,536.50
4. Step 4: Simplify right side
   331,887x = 262,693,663,832.25
5. Step 5: Solve for x
   x = 262,693,663,832.25/331,887
6. Step 6: Final answer
   x = 791,515.38