Finding the Third Proportional to 686,556 and 1,495,164

Step by Step Solution

1. Step 1: Write the proportion equation
   686,556 : 1,495,164 = 1,495,164 : x
2. Step 2: Convert to fraction form
   686,556/1,495,164 = 1,495,164/x
3. Step 3: Cross multiply
   686,556x = 1,495,164 × 1,495,164
4. Step 4: Simplify right side
   686,556x = 2,235,515,386,896
5. Step 5: Solve for x
   x = 2,235,515,386,896/686,556
6. Step 6: Final answer
   x = 3,256,129.71