Finding the Third Proportional to 7,878,377 and 17,137,116

Step by Step Solution

1. Step 1: Write the proportion equation
   7,878,377 : 17,137,116 = 17,137,116 : x
2. Step 2: Convert to fraction form
   7,878,377/17,137,116 = 17,137,116/x
3. Step 3: Cross multiply
   7,878,377x = 17,137,116 × 17,137,116
4. Step 4: Simplify right side
   7,878,377x = 293,680,744,797,456
5. Step 5: Solve for x
   x = 293,680,744,797,456/7,878,377
6. Step 6: Final answer
   x = 37,276,807.75