Finding the Third Proportional to 853,522 and 1,860,644

Step by Step Solution

1. Step 1: Write the proportion equation
   853,522 : 1,860,644 = 1,860,644 : x
2. Step 2: Convert to fraction form
   853,522/1,860,644 = 1,860,644/x
3. Step 3: Cross multiply
   853,522x = 1,860,644 × 1,860,644
4. Step 4: Simplify right side
   853,522x = 3,461,996,094,736
5. Step 5: Solve for x
   x = 3,461,996,094,736/853,522
6. Step 6: Final answer
   x = 4,056,129.89