Finding the Third Proportional to 161,649 and 351,274.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,649 : 351,274.50 = 351,274.50 : x
2. Step 2: Convert to fraction form
   161,649/351,274.50 = 351,274.50/x
3. Step 3: Cross multiply
   161,649x = 351,274.50 × 351,274.50
4. Step 4: Simplify right side
   161,649x = 123,393,774,350.25
5. Step 5: Solve for x
   x = 123,393,774,350.25/161,649
6. Step 6: Final answer
   x = 763,343.88