Finding the Third Proportional to 336,912 and 729,844.50

Step by Step Solution

1. Step 1: Write the proportion equation
   336,912 : 729,844.50 = 729,844.50 : x
2. Step 2: Convert to fraction form
   336,912/729,844.50 = 729,844.50/x
3. Step 3: Cross multiply
   336,912x = 729,844.50 × 729,844.50
4. Step 4: Simplify right side
   336,912x = 532,672,994,180.25
5. Step 5: Solve for x
   x = 532,672,994,180.25/336,912
6. Step 6: Final answer
   x = 1,581,044.88