Finding the Third Proportional to 86,806,740 and 187,242,648

Step by Step Solution

1. Step 1: Write the proportion equation
   86,806,740 : 187,242,648 = 187,242,648 : x
2. Step 2: Convert to fraction form
   86,806,740/187,242,648 = 187,242,648/x
3. Step 3: Cross multiply
   86,806,740x = 187,242,648 × 187,242,648
4. Step 4: Simplify right side
   86,806,740x = 35,059,809,230,051,904
5. Step 5: Solve for x
   x = 35,059,809,230,051,904/86,806,740
6. Step 6: Final answer
   x = 403,883,491.42