Finding the Third Proportional to 161,412 and 375,090

Step by Step Solution

1. Step 1: Write the proportion equation
   161,412 : 375,090 = 375,090 : x
2. Step 2: Convert to fraction form
   161,412/375,090 = 375,090/x
3. Step 3: Cross multiply
   161,412x = 375,090 × 375,090
4. Step 4: Simplify right side
   161,412x = 140,692,508,100
5. Step 5: Solve for x
   x = 140,692,508,100/161,412
6. Step 6: Final answer
   x = 871,635.99