Finding the Third Proportional to 419,833,874.25 and 911,031,328.69

Step by Step Solution

1. Step 1: Write the proportion equation
   419,833,874.25 : 911,031,328.69 = 911,031,328.69 : x
2. Step 2: Convert to fraction form
   419,833,874.25/911,031,328.69 = 911,031,328.69/x
3. Step 3: Cross multiply
   419,833,874.25x = 911,031,328.69 × 911,031,328.69
4. Step 4: Simplify right side
   419,833,874.25x = 829,978,081,850,111,616
5. Step 5: Solve for x
   x = 829,978,081,850,111,616/419,833,874.25
6. Step 6: Final answer
   x = 1,976,920,236.21