Finding the Third Proportional to 561,080 and 869,196

Step by Step Solution

1. Step 1: Write the proportion equation
   561,080 : 869,196 = 869,196 : x
2. Step 2: Convert to fraction form
   561,080/869,196 = 869,196/x
3. Step 3: Cross multiply
   561,080x = 869,196 × 869,196
4. Step 4: Simplify right side
   561,080x = 755,501,686,416
5. Step 5: Solve for x
   x = 755,501,686,416/561,080
6. Step 6: Final answer
   x = 1,346,513.31