Finding the Third Proportional to 310,837.50 and 472,338

Step by Step Solution

1. Step 1: Write the proportion equation
   310,837.50 : 472,338 = 472,338 : x
2. Step 2: Convert to fraction form
   310,837.50/472,338 = 472,338/x
3. Step 3: Cross multiply
   310,837.50x = 472,338 × 472,338
4. Step 4: Simplify right side
   310,837.50x = 223,103,186,244
5. Step 5: Solve for x
   x = 223,103,186,244/310,837.50
6. Step 6: Final answer
   x = 717,748.62