Finding the Third Proportional to 305,086.50 and 472,392

Step by Step Solution

1. Step 1: Write the proportion equation
   305,086.50 : 472,392 = 472,392 : x
2. Step 2: Convert to fraction form
   305,086.50/472,392 = 472,392/x
3. Step 3: Cross multiply
   305,086.50x = 472,392 × 472,392
4. Step 4: Simplify right side
   305,086.50x = 223,154,201,664
5. Step 5: Solve for x
   x = 223,154,201,664/305,086.50
6. Step 6: Final answer
   x = 731,445.68