Finding the Third Proportional to 2,495,280 and 5,405,280

Step by Step Solution

1. Step 1: Write the proportion equation
   2,495,280 : 5,405,280 = 5,405,280 : x
2. Step 2: Convert to fraction form
   2,495,280/5,405,280 = 5,405,280/x
3. Step 3: Cross multiply
   2,495,280x = 5,405,280 × 5,405,280
4. Step 4: Simplify right side
   2,495,280x = 29,217,051,878,400
5. Step 5: Solve for x
   x = 29,217,051,878,400/2,495,280
6. Step 6: Final answer
   x = 11,708,927.21