Finding the Third Proportional to 171,642 and 371,593.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,642 : 371,593.50 = 371,593.50 : x
2. Step 2: Convert to fraction form
   171,642/371,593.50 = 371,593.50/x
3. Step 3: Cross multiply
   171,642x = 371,593.50 × 371,593.50
4. Step 4: Simplify right side
   171,642x = 138,081,729,242.25
5. Step 5: Solve for x
   x = 138,081,729,242.25/171,642
6. Step 6: Final answer
   x = 804,475.18