Finding the Third Proportional to 305,370 and 667,312.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,370 : 667,312.50 = 667,312.50 : x
2. Step 2: Convert to fraction form
   305,370/667,312.50 = 667,312.50/x
3. Step 3: Cross multiply
   305,370x = 667,312.50 × 667,312.50
4. Step 4: Simplify right side
   305,370x = 445,305,972,656.25
5. Step 5: Solve for x
   x = 445,305,972,656.25/305,370
6. Step 6: Final answer
   x = 1,458,250.56