Finding the Third Proportional to 686,545 and 1,495,142

Step by Step Solution

1. Step 1: Write the proportion equation
   686,545 : 1,495,142 = 1,495,142 : x
2. Step 2: Convert to fraction form
   686,545/1,495,142 = 1,495,142/x
3. Step 3: Cross multiply
   686,545x = 1,495,142 × 1,495,142
4. Step 4: Simplify right side
   686,545x = 2,235,449,600,164
5. Step 5: Solve for x
   x = 2,235,449,600,164/686,545
6. Step 6: Final answer
   x = 3,256,086.05