Finding the Third Proportional to 302,375,641,630 and 647,881,039,404

Step by Step Solution

1. Step 1: Write the proportion equation
   302,375,641,630 : 647,881,039,404 = 647,881,039,404 : x
2. Step 2: Convert to fraction form
   302,375,641,630/647,881,039,404 = 647,881,039,404/x
3. Step 3: Cross multiply
   302,375,641,630x = 647,881,039,404 × 647,881,039,404
4. Step 4: Simplify right side
   302,375,641,630x = 419,749,841,219,207,420,706,816
5. Step 5: Solve for x
   x = 419,749,841,219,207,420,706,816/302,375,641,630
6. Step 6: Final answer
   x = 1,388,173,461,845.29