Finding the Third Proportional to 161,694 and 333,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,694 : 333,769.50 = 333,769.50 : x
2. Step 2: Convert to fraction form
   161,694/333,769.50 = 333,769.50/x
3. Step 3: Cross multiply
   161,694x = 333,769.50 × 333,769.50
4. Step 4: Simplify right side
   161,694x = 111,402,079,130.25
5. Step 5: Solve for x
   x = 111,402,079,130.25/161,694
6. Step 6: Final answer
   x = 688,968.54