Finding the Third Proportional to 39,762,642 and 86,968,356

Step by Step Solution

1. Step 1: Write the proportion equation
   39,762,642 : 86,968,356 = 86,968,356 : x
2. Step 2: Convert to fraction form
   39,762,642/86,968,356 = 86,968,356/x
3. Step 3: Cross multiply
   39,762,642x = 86,968,356 × 86,968,356
4. Step 4: Simplify right side
   39,762,642x = 7,563,494,945,342,736
5. Step 5: Solve for x
   x = 7,563,494,945,342,736/39,762,642
6. Step 6: Final answer
   x = 190,216,106.50