Finding the Third Proportional to 34,687,809 and 77,131,264

Step by Step Solution

1. Step 1: Write the proportion equation
   34,687,809 : 77,131,264 = 77,131,264 : x
2. Step 2: Convert to fraction form
   34,687,809/77,131,264 = 77,131,264/x
3. Step 3: Cross multiply
   34,687,809x = 77,131,264 × 77,131,264
4. Step 4: Simplify right side
   34,687,809x = 5,949,231,886,237,696
5. Step 5: Solve for x
   x = 5,949,231,886,237,696/34,687,809
6. Step 6: Final answer
   x = 171,507,859.90