Finding the Third Proportional to 164,308.50 and 349,803

Step by Step Solution

1. Step 1: Write the proportion equation
   164,308.50 : 349,803 = 349,803 : x
2. Step 2: Convert to fraction form
   164,308.50/349,803 = 349,803/x
3. Step 3: Cross multiply
   164,308.50x = 349,803 × 349,803
4. Step 4: Simplify right side
   164,308.50x = 122,362,138,809
5. Step 5: Solve for x
   x = 122,362,138,809/164,308.50
6. Step 6: Final answer
   x = 744,709.73