Finding the Third Proportional to 1,640,300 and 2,208,156

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,300 : 2,208,156 = 2,208,156 : x
2. Step 2: Convert to fraction form
   1,640,300/2,208,156 = 2,208,156/x
3. Step 3: Cross multiply
   1,640,300x = 2,208,156 × 2,208,156
4. Step 4: Simplify right side
   1,640,300x = 4,875,952,920,336
5. Step 5: Solve for x
   x = 4,875,952,920,336/1,640,300
6. Step 6: Final answer
   x = 2,972,598.26