Finding the Third Proportional to 412,729.31 and 617,196.38

Step by Step Solution

1. Step 1: Write the proportion equation
   412,729.31 : 617,196.38 = 617,196.38 : x
2. Step 2: Convert to fraction form
   412,729.31/617,196.38 = 617,196.38/x
3. Step 3: Cross multiply
   412,729.31x = 617,196.38 × 617,196.38
4. Step 4: Simplify right side
   412,729.31x = 380,931,365,313.14
5. Step 5: Solve for x
   x = 380,931,365,313.14/412,729.31
6. Step 6: Final answer
   x = 922,956.90