Finding the Third Proportional to 5,287,296 and 8,403,348

Step by Step Solution

1. Step 1: Write the proportion equation
   5,287,296 : 8,403,348 = 8,403,348 : x
2. Step 2: Convert to fraction form
   5,287,296/8,403,348 = 8,403,348/x
3. Step 3: Cross multiply
   5,287,296x = 8,403,348 × 8,403,348
4. Step 4: Simplify right side
   5,287,296x = 70,616,257,609,104
5. Step 5: Solve for x
   x = 70,616,257,609,104/5,287,296
6. Step 6: Final answer
   x = 13,355,835.88