Finding the Third Proportional to 76,780,278 and 117,736,665

Step by Step Solution

1. Step 1: Write the proportion equation
   76,780,278 : 117,736,665 = 117,736,665 : x
2. Step 2: Convert to fraction form
   76,780,278/117,736,665 = 117,736,665/x
3. Step 3: Cross multiply
   76,780,278x = 117,736,665 × 117,736,665
4. Step 4: Simplify right side
   76,780,278x = 13,861,922,285,322,224
5. Step 5: Solve for x
   x = 13,861,922,285,322,224/76,780,278
6. Step 6: Final answer
   x = 180,540,141.90