Finding the Third Proportional to 688,377 and 1,491,141

Step by Step Solution

1. Step 1: Write the proportion equation
   688,377 : 1,491,141 = 1,491,141 : x
2. Step 2: Convert to fraction form
   688,377/1,491,141 = 1,491,141/x
3. Step 3: Cross multiply
   688,377x = 1,491,141 × 1,491,141
4. Step 4: Simplify right side
   688,377x = 2,223,501,481,881
5. Step 5: Solve for x
   x = 2,223,501,481,881/688,377
6. Step 6: Final answer
   x = 3,230,063.59