Finding the Third Proportional to 585,175.50 and 918,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   585,175.50 : 918,200.25 = 918,200.25 : x
2. Step 2: Convert to fraction form
   585,175.50/918,200.25 = 918,200.25/x
3. Step 3: Cross multiply
   585,175.50x = 918,200.25 × 918,200.25
4. Step 4: Simplify right side
   585,175.50x = 843,091,699,100.06
5. Step 5: Solve for x
   x = 843,091,699,100.06/585,175.50
6. Step 6: Final answer
   x = 1,440,750.17