Finding the Third Proportional to 404,309,035 and 621,068,136

Step by Step Solution

1. Step 1: Write the proportion equation
   404,309,035 : 621,068,136 = 621,068,136 : x
2. Step 2: Convert to fraction form
   404,309,035/621,068,136 = 621,068,136/x
3. Step 3: Cross multiply
   404,309,035x = 621,068,136 × 621,068,136
4. Step 4: Simplify right side
   404,309,035x = 385,725,629,554,514,496
5. Step 5: Solve for x
   x = 385,725,629,554,514,496/404,309,035
6. Step 6: Final answer
   x = 954,036,630.80