Finding the Third Proportional to 158,245,912,994 and 213,510,891,905

Step by Step Solution

1. Step 1: Write the proportion equation
   158,245,912,994 : 213,510,891,905 = 213,510,891,905 : x
2. Step 2: Convert to fraction form
   158,245,912,994/213,510,891,905 = 213,510,891,905/x
3. Step 3: Cross multiply
   158,245,912,994x = 213,510,891,905 × 213,510,891,905
4. Step 4: Simplify right side
   158,245,912,994x = 45,586,900,962,068,591,017,984
5. Step 5: Solve for x
   x = 45,586,900,962,068,591,017,984/158,245,912,994
6. Step 6: Final answer
   x = 288,076,324,371.15