Finding the Third Proportional to 403,792,386 and 876,499,116

Step by Step Solution

1. Step 1: Write the proportion equation
   403,792,386 : 876,499,116 = 876,499,116 : x
2. Step 2: Convert to fraction form
   403,792,386/876,499,116 = 876,499,116/x
3. Step 3: Cross multiply
   403,792,386x = 876,499,116 × 876,499,116
4. Step 4: Simplify right side
   403,792,386x = 768,250,700,348,781,440
5. Step 5: Solve for x
   x = 768,250,700,348,781,440/403,792,386
6. Step 6: Final answer
   x = 1,902,588,377.06