Finding the Third Proportional to 413,392 and 620,083.50

Step by Step Solution

1. Step 1: Write the proportion equation
   413,392 : 620,083.50 = 620,083.50 : x
2. Step 2: Convert to fraction form
   413,392/620,083.50 = 620,083.50/x
3. Step 3: Cross multiply
   413,392x = 620,083.50 × 620,083.50
4. Step 4: Simplify right side
   413,392x = 384,503,546,972.25
5. Step 5: Solve for x
   x = 384,503,546,972.25/413,392
6. Step 6: Final answer
   x = 930,118.50