Finding the Third Proportional to 19,443,168 and 42,546,240

Step by Step Solution

1. Step 1: Write the proportion equation
   19,443,168 : 42,546,240 = 42,546,240 : x
2. Step 2: Convert to fraction form
   19,443,168/42,546,240 = 42,546,240/x
3. Step 3: Cross multiply
   19,443,168x = 42,546,240 × 42,546,240
4. Step 4: Simplify right side
   19,443,168x = 1,810,182,538,137,600
5. Step 5: Solve for x
   x = 1,810,182,538,137,600/19,443,168
6. Step 6: Final answer
   x = 93,101,213.66