Finding the Third Proportional to 413,410.50 and 620,118

Step by Step Solution

1. Step 1: Write the proportion equation
   413,410.50 : 620,118 = 620,118 : x
2. Step 2: Convert to fraction form
   413,410.50/620,118 = 620,118/x
3. Step 3: Cross multiply
   413,410.50x = 620,118 × 620,118
4. Step 4: Simplify right side
   413,410.50x = 384,546,333,924
5. Step 5: Solve for x
   x = 384,546,333,924/413,410.50
6. Step 6: Final answer
   x = 930,180.38