Finding the Third Proportional to 35,156,974 and 77,121,260

Step by Step Solution

1. Step 1: Write the proportion equation
   35,156,974 : 77,121,260 = 77,121,260 : x
2. Step 2: Convert to fraction form
   35,156,974/77,121,260 = 77,121,260/x
3. Step 3: Cross multiply
   35,156,974x = 77,121,260 × 77,121,260
4. Step 4: Simplify right side
   35,156,974x = 5,947,688,743,987,600
5. Step 5: Solve for x
   x = 5,947,688,743,987,600/35,156,974
6. Step 6: Final answer
   x = 169,175,218.09