Finding the Third Proportional to 300,753,103 and 478,557,300

Step by Step Solution

1. Step 1: Write the proportion equation
   300,753,103 : 478,557,300 = 478,557,300 : x
2. Step 2: Convert to fraction form
   300,753,103/478,557,300 = 478,557,300/x
3. Step 3: Cross multiply
   300,753,103x = 478,557,300 × 478,557,300
4. Step 4: Simplify right side
   300,753,103x = 229,017,089,383,289,984
5. Step 5: Solve for x
   x = 229,017,089,383,289,984/300,753,103
6. Step 6: Final answer
   x = 761,478,724.90