Finding the Third Proportional to 291,022,069,624 and 636,906,064,462

Step by Step Solution

1. Step 1: Write the proportion equation
   291,022,069,624 : 636,906,064,462 = 636,906,064,462 : x
2. Step 2: Convert to fraction form
   291,022,069,624/636,906,064,462 = 636,906,064,462/x
3. Step 3: Cross multiply
   291,022,069,624x = 636,906,064,462 × 636,906,064,462
4. Step 4: Simplify right side
   291,022,069,624x = 405,649,334,948,473,287,475,200
5. Step 5: Solve for x
   x = 405,649,334,948,473,287,475,200/291,022,069,624
6. Step 6: Final answer
   x = 1,393,878,256,286.79