Finding the Third Proportional to 317,181 and 683,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   317,181 : 683,875.50 = 683,875.50 : x
2. Step 2: Convert to fraction form
   317,181/683,875.50 = 683,875.50/x
3. Step 3: Cross multiply
   317,181x = 683,875.50 × 683,875.50
4. Step 4: Simplify right side
   317,181x = 467,685,699,500.25
5. Step 5: Solve for x
   x = 467,685,699,500.25/317,181
6. Step 6: Final answer
   x = 1,474,507.30