Finding the Third Proportional to 300,753,124 and 478,557,336

Step by Step Solution

1. Step 1: Write the proportion equation
   300,753,124 : 478,557,336 = 478,557,336 : x
2. Step 2: Convert to fraction form
   300,753,124/478,557,336 = 478,557,336/x
3. Step 3: Cross multiply
   300,753,124x = 478,557,336 × 478,557,336
4. Step 4: Simplify right side
   300,753,124x = 229,017,123,839,416,896
5. Step 5: Solve for x
   x = 229,017,123,839,416,896/300,753,124
6. Step 6: Final answer
   x = 761,478,786.30