Finding the Third Proportional to 302,375,641,628 and 647,881,039,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,375,641,628 : 647,881,039,398.50 = 647,881,039,398.50 : x
2. Step 2: Convert to fraction form
   302,375,641,628/647,881,039,398.50 = 647,881,039,398.50/x
3. Step 3: Cross multiply
   302,375,641,628x = 647,881,039,398.50 × 647,881,039,398.50
4. Step 4: Simplify right side
   302,375,641,628x = 419,749,841,212,080,727,785,472
5. Step 5: Solve for x
   x = 419,749,841,212,080,727,785,472/302,375,641,628
6. Step 6: Final answer
   x = 1,388,173,461,830.90