Finding the Third Proportional to 5,487,453 and 8,151,591

Step by Step Solution

1. Step 1: Write the proportion equation
   5,487,453 : 8,151,591 = 8,151,591 : x
2. Step 2: Convert to fraction form
   5,487,453/8,151,591 = 8,151,591/x
3. Step 3: Cross multiply
   5,487,453x = 8,151,591 × 8,151,591
4. Step 4: Simplify right side
   5,487,453x = 66,448,435,831,281
5. Step 5: Solve for x
   x = 66,448,435,831,281/5,487,453
6. Step 6: Final answer
   x = 12,109,158.08