Finding the Third Proportional to 549,385 and 1,140,872

Step by Step Solution

1. Step 1: Write the proportion equation
   549,385 : 1,140,872 = 1,140,872 : x
2. Step 2: Convert to fraction form
   549,385/1,140,872 = 1,140,872/x
3. Step 3: Cross multiply
   549,385x = 1,140,872 × 1,140,872
4. Step 4: Simplify right side
   549,385x = 1,301,588,920,384
5. Step 5: Solve for x
   x = 1,301,588,920,384/549,385
6. Step 6: Final answer
   x = 2,369,174.48