Finding the Third Proportional to 251,857.50 and 349,074

Step by Step Solution

1. Step 1: Write the proportion equation
   251,857.50 : 349,074 = 349,074 : x
2. Step 2: Convert to fraction form
   251,857.50/349,074 = 349,074/x
3. Step 3: Cross multiply
   251,857.50x = 349,074 × 349,074
4. Step 4: Simplify right side
   251,857.50x = 121,852,657,476
5. Step 5: Solve for x
   x = 121,852,657,476/251,857.50
6. Step 6: Final answer
   x = 483,815.88