Finding the Third Proportional to 170,805 and 243,313.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,805 : 243,313.50 = 243,313.50 : x
2. Step 2: Convert to fraction form
   170,805/243,313.50 = 243,313.50/x
3. Step 3: Cross multiply
   170,805x = 243,313.50 × 243,313.50
4. Step 4: Simplify right side
   170,805x = 59,201,459,282.25
5. Step 5: Solve for x
   x = 59,201,459,282.25/170,805
6. Step 6: Final answer
   x = 346,602.61