Finding the Third Proportional to 302,375,641,624.50 and 647,881,039,392

Step by Step Solution

1. Step 1: Write the proportion equation
   302,375,641,624.50 : 647,881,039,392 = 647,881,039,392 : x
2. Step 2: Convert to fraction form
   302,375,641,624.50/647,881,039,392 = 647,881,039,392/x
3. Step 3: Cross multiply
   302,375,641,624.50x = 647,881,039,392 × 647,881,039,392
4. Step 4: Simplify right side
   302,375,641,624.50x = 419,749,841,203,658,229,809,152
5. Step 5: Solve for x
   x = 419,749,841,203,658,229,809,152/302,375,641,624.50
6. Step 6: Final answer
   x = 1,388,173,461,819.12