Finding the Third Proportional to 161,419 and 375,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,419 : 375,107.50 = 375,107.50 : x
2. Step 2: Convert to fraction form
   161,419/375,107.50 = 375,107.50/x
3. Step 3: Cross multiply
   161,419x = 375,107.50 × 375,107.50
4. Step 4: Simplify right side
   161,419x = 140,705,636,556.25
5. Step 5: Solve for x
   x = 140,705,636,556.25/161,419
6. Step 6: Final answer
   x = 871,679.52