Finding the Third Proportional to 585,499.50 and 904,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   585,499.50 : 904,837.50 = 904,837.50 : x
2. Step 2: Convert to fraction form
   585,499.50/904,837.50 = 904,837.50/x
3. Step 3: Cross multiply
   585,499.50x = 904,837.50 × 904,837.50
4. Step 4: Simplify right side
   585,499.50x = 818,730,901,406.25
5. Step 5: Solve for x
   x = 818,730,901,406.25/585,499.50
6. Step 6: Final answer
   x = 1,398,346.03