Finding the Third Proportional to 1,689,490 and 3,676,406

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,490 : 3,676,406 = 3,676,406 : x
2. Step 2: Convert to fraction form
   1,689,490/3,676,406 = 3,676,406/x
3. Step 3: Cross multiply
   1,689,490x = 3,676,406 × 3,676,406
4. Step 4: Simplify right side
   1,689,490x = 13,515,961,076,836
5. Step 5: Solve for x
   x = 13,515,961,076,836/1,689,490
6. Step 6: Final answer
   x = 8,000,024.31