Finding the Third Proportional to 50,397,376 and 78,185,490

Step by Step Solution

1. Step 1: Write the proportion equation
   50,397,376 : 78,185,490 = 78,185,490 : x
2. Step 2: Convert to fraction form
   50,397,376/78,185,490 = 78,185,490/x
3. Step 3: Cross multiply
   50,397,376x = 78,185,490 × 78,185,490
4. Step 4: Simplify right side
   50,397,376x = 6,112,970,846,540,100
5. Step 5: Solve for x
   x = 6,112,970,846,540,100/50,397,376
6. Step 6: Final answer
   x = 121,295,419.16