Finding the Third Proportional to 5,298,987 and 8,404,473

Step by Step Solution

1. Step 1: Write the proportion equation
   5,298,987 : 8,404,473 = 8,404,473 : x
2. Step 2: Convert to fraction form
   5,298,987/8,404,473 = 8,404,473/x
3. Step 3: Cross multiply
   5,298,987x = 8,404,473 × 8,404,473
4. Step 4: Simplify right side
   5,298,987x = 70,635,166,407,729
5. Step 5: Solve for x
   x = 70,635,166,407,729/5,298,987
6. Step 6: Final answer
   x = 13,329,937.67