Finding the Third Proportional to 2,171,280 and 4,640,732

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,280 : 4,640,732 = 4,640,732 : x
2. Step 2: Convert to fraction form
   2,171,280/4,640,732 = 4,640,732/x
3. Step 3: Cross multiply
   2,171,280x = 4,640,732 × 4,640,732
4. Step 4: Simplify right side
   2,171,280x = 21,536,393,495,824
5. Step 5: Solve for x
   x = 21,536,393,495,824/2,171,280
6. Step 6: Final answer
   x = 9,918,754.60