Finding the Third Proportional to 320,826.76 and 696,492.42

Step by Step Solution

1. Step 1: Write the proportion equation
   320,826.76 : 696,492.42 = 696,492.42 : x
2. Step 2: Convert to fraction form
   320,826.76/696,492.42 = 696,492.42/x
3. Step 3: Cross multiply
   320,826.76x = 696,492.42 × 696,492.42
4. Step 4: Simplify right side
   320,826.76x = 485,101,693,729.30
5. Step 5: Solve for x
   x = 485,101,693,729.30/320,826.76
6. Step 6: Final answer
   x = 1,512,036.25