Finding the Third Proportional to 300,753,113 and 478,557,315

Step by Step Solution

1. Step 1: Write the proportion equation
   300,753,113 : 478,557,315 = 478,557,315 : x
2. Step 2: Convert to fraction form
   300,753,113/478,557,315 = 478,557,315/x
3. Step 3: Cross multiply
   300,753,113x = 478,557,315 × 478,557,315
4. Step 4: Simplify right side
   300,753,113x = 229,017,103,740,009,216
5. Step 5: Solve for x
   x = 229,017,103,740,009,216/300,753,113
6. Step 6: Final answer
   x = 761,478,747.32