Finding the Third Proportional to 298,963 and 436,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,963 : 436,933.50 = 436,933.50 : x
2. Step 2: Convert to fraction form
   298,963/436,933.50 = 436,933.50/x
3. Step 3: Cross multiply
   298,963x = 436,933.50 × 436,933.50
4. Step 4: Simplify right side
   298,963x = 190,910,883,422.25
5. Step 5: Solve for x
   x = 190,910,883,422.25/298,963
6. Step 6: Final answer
   x = 638,576.96