Finding the Third Proportional to 976,373,380 and 2,139,280,362

Step by Step Solution

1. Step 1: Write the proportion equation
   976,373,380 : 2,139,280,362 = 2,139,280,362 : x
2. Step 2: Convert to fraction form
   976,373,380/2,139,280,362 = 2,139,280,362/x
3. Step 3: Cross multiply
   976,373,380x = 2,139,280,362 × 2,139,280,362
4. Step 4: Simplify right side
   976,373,380x = 4,576,520,467,238,851,072
5. Step 5: Solve for x
   x = 4,576,520,467,238,851,072/976,373,380
6. Step 6: Final answer
   x = 4,687,264,688.88