Finding the Third Proportional to 78,632,809 and 123,082,928

Step by Step Solution

1. Step 1: Write the proportion equation
   78,632,809 : 123,082,928 = 123,082,928 : x
2. Step 2: Convert to fraction form
   78,632,809/123,082,928 = 123,082,928/x
3. Step 3: Cross multiply
   78,632,809x = 123,082,928 × 123,082,928
4. Step 4: Simplify right side
   78,632,809x = 15,149,407,165,053,184
5. Step 5: Solve for x
   x = 15,149,407,165,053,184/78,632,809
6. Step 6: Final answer
   x = 192,660,129.50