Finding the Third Proportional to 30,715,074 and 67,215,492

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715,074 : 67,215,492 = 67,215,492 : x
2. Step 2: Convert to fraction form
   30,715,074/67,215,492 = 67,215,492/x
3. Step 3: Cross multiply
   30,715,074x = 67,215,492 × 67,215,492
4. Step 4: Simplify right side
   30,715,074x = 4,517,922,364,802,064
5. Step 5: Solve for x
   x = 4,517,922,364,802,064/30,715,074
6. Step 6: Final answer
   x = 147,091,371.64