Finding the Third Proportional to 161,748 and 345,662

Step by Step Solution

1. Step 1: Write the proportion equation
   161,748 : 345,662 = 345,662 : x
2. Step 2: Convert to fraction form
   161,748/345,662 = 345,662/x
3. Step 3: Cross multiply
   161,748x = 345,662 × 345,662
4. Step 4: Simplify right side
   161,748x = 119,482,218,244
5. Step 5: Solve for x
   x = 119,482,218,244/161,748
6. Step 6: Final answer
   x = 738,693.64