Finding the Third Proportional to 19,910,448 and 42,550,272

Step by Step Solution

1. Step 1: Write the proportion equation
   19,910,448 : 42,550,272 = 42,550,272 : x
2. Step 2: Convert to fraction form
   19,910,448/42,550,272 = 42,550,272/x
3. Step 3: Cross multiply
   19,910,448x = 42,550,272 × 42,550,272
4. Step 4: Simplify right side
   19,910,448x = 1,810,525,647,273,984
5. Step 5: Solve for x
   x = 1,810,525,647,273,984/19,910,448
6. Step 6: Final answer
   x = 90,933,445.96