Finding the Third Proportional to 648,285,788 and 1,419,521,798

Step by Step Solution

1. Step 1: Write the proportion equation
   648,285,788 : 1,419,521,798 = 1,419,521,798 : x
2. Step 2: Convert to fraction form
   648,285,788/1,419,521,798 = 1,419,521,798/x
3. Step 3: Cross multiply
   648,285,788x = 1,419,521,798 × 1,419,521,798
4. Step 4: Simplify right side
   648,285,788x = 2,015,042,134,997,152,768
5. Step 5: Solve for x
   x = 2,015,042,134,997,152,768/648,285,788
6. Step 6: Final answer
   x = 3,108,262,084.86