Finding the Third Proportional to 507,996 and 696,601.25

Step by Step Solution

1. Step 1: Write the proportion equation
   507,996 : 696,601.25 = 696,601.25 : x
2. Step 2: Convert to fraction form
   507,996/696,601.25 = 696,601.25/x
3. Step 3: Cross multiply
   507,996x = 696,601.25 × 696,601.25
4. Step 4: Simplify right side
   507,996x = 485,253,301,501.56
5. Step 5: Solve for x
   x = 485,253,301,501.56/507,996
6. Step 6: Final answer
   x = 955,230.56