Finding the Third Proportional to 369,921.50 and 501,297

Step by Step Solution

1. Step 1: Write the proportion equation
   369,921.50 : 501,297 = 501,297 : x
2. Step 2: Convert to fraction form
   369,921.50/501,297 = 501,297/x
3. Step 3: Cross multiply
   369,921.50x = 501,297 × 501,297
4. Step 4: Simplify right side
   369,921.50x = 251,298,682,209
5. Step 5: Solve for x
   x = 251,298,682,209/369,921.50
6. Step 6: Final answer
   x = 679,329.76