Finding the Third Proportional to 291,307.50 and 418,104

Step by Step Solution

1. Step 1: Write the proportion equation
   291,307.50 : 418,104 = 418,104 : x
2. Step 2: Convert to fraction form
   291,307.50/418,104 = 418,104/x
3. Step 3: Cross multiply
   291,307.50x = 418,104 × 418,104
4. Step 4: Simplify right side
   291,307.50x = 174,810,954,816
5. Step 5: Solve for x
   x = 174,810,954,816/291,307.50
6. Step 6: Final answer
   x = 600,090.81