Finding the Third Proportional to 316,948.50 and 696,105

Step by Step Solution

1. Step 1: Write the proportion equation
   316,948.50 : 696,105 = 696,105 : x
2. Step 2: Convert to fraction form
   316,948.50/696,105 = 696,105/x
3. Step 3: Cross multiply
   316,948.50x = 696,105 × 696,105
4. Step 4: Simplify right side
   316,948.50x = 484,562,171,025
5. Step 5: Solve for x
   x = 484,562,171,025/316,948.50
6. Step 6: Final answer
   x = 1,528,835.67