Finding the Third Proportional to 5,406,408 and 7,558,488

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406,408 : 7,558,488 = 7,558,488 : x
2. Step 2: Convert to fraction form
   5,406,408/7,558,488 = 7,558,488/x
3. Step 3: Cross multiply
   5,406,408x = 7,558,488 × 7,558,488
4. Step 4: Simplify right side
   5,406,408x = 57,130,740,846,144
5. Step 5: Solve for x
   x = 57,130,740,846,144/5,406,408
6. Step 6: Final answer
   x = 10,567,227.05