Finding the Third Proportional to 8,415,924 and 18,406,488

Step by Step Solution

1. Step 1: Write the proportion equation
   8,415,924 : 18,406,488 = 18,406,488 : x
2. Step 2: Convert to fraction form
   8,415,924/18,406,488 = 18,406,488/x
3. Step 3: Cross multiply
   8,415,924x = 18,406,488 × 18,406,488
4. Step 4: Simplify right side
   8,415,924x = 338,798,800,494,144
5. Step 5: Solve for x
   x = 338,798,800,494,144/8,415,924
6. Step 6: Final answer
   x = 40,256,875.00