Finding the Third Proportional to 438,654,858 and 963,408,018

Step by Step Solution

1. Step 1: Write the proportion equation
   438,654,858 : 963,408,018 = 963,408,018 : x
2. Step 2: Convert to fraction form
   438,654,858/963,408,018 = 963,408,018/x
3. Step 3: Cross multiply
   438,654,858x = 963,408,018 × 963,408,018
4. Step 4: Simplify right side
   438,654,858x = 928,155,009,146,688,384
5. Step 5: Solve for x
   x = 928,155,009,146,688,384/438,654,858
6. Step 6: Final answer
   x = 2,115,911,843.26