Finding the Third Proportional to 300,753,096.19 and 478,557,289.69

Step by Step Solution

1. Step 1: Write the proportion equation
   300,753,096.19 : 478,557,289.69 = 478,557,289.69 : x
2. Step 2: Convert to fraction form
   300,753,096.19/478,557,289.69 = 478,557,289.69/x
3. Step 3: Cross multiply
   300,753,096.19x = 478,557,289.69 × 478,557,289.69
4. Step 4: Simplify right side
   300,753,096.19x = 229,017,079,513,045,792
5. Step 5: Solve for x
   x = 229,017,079,513,045,792/300,753,096.19
6. Step 6: Final answer
   x = 761,478,709.33