Finding the Third Proportional to 686,545.45 and 1,495,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   686,545.45 : 1,495,142.72 = 1,495,142.72 : x
2. Step 2: Convert to fraction form
   686,545.45/1,495,142.72 = 1,495,142.72/x
3. Step 3: Cross multiply
   686,545.45x = 1,495,142.72 × 1,495,142.72
4. Step 4: Simplify right side
   686,545.45x = 2,235,451,749,431.14
5. Step 5: Solve for x
   x = 2,235,451,749,431.14/686,545.45
6. Step 6: Final answer
   x = 3,256,087.04