Finding the Third Proportional to 688,131 and 1,619,038.69

Step by Step Solution

1. Step 1: Write the proportion equation
   688,131 : 1,619,038.69 = 1,619,038.69 : x
2. Step 2: Convert to fraction form
   688,131/1,619,038.69 = 1,619,038.69/x
3. Step 3: Cross multiply
   688,131x = 1,619,038.69 × 1,619,038.69
4. Step 4: Simplify right side
   688,131x = 2,621,286,271,621.72
5. Step 5: Solve for x
   x = 2,621,286,271,621.72/688,131
6. Step 6: Final answer
   x = 3,809,283.80