Finding the Third Proportional to 78,751,210 and 123,256,059

Step by Step Solution

1. Step 1: Write the proportion equation
   78,751,210 : 123,256,059 = 123,256,059 : x
2. Step 2: Convert to fraction form
   78,751,210/123,256,059 = 123,256,059/x
3. Step 3: Cross multiply
   78,751,210x = 123,256,059 × 123,256,059
4. Step 4: Simplify right side
   78,751,210x = 15,192,056,080,211,480
5. Step 5: Solve for x
   x = 15,192,056,080,211,480/78,751,210
6. Step 6: Final answer
   x = 192,912,033.74