Finding the Third Proportional to 747,692 and 1,640,140

Step by Step Solution

1. Step 1: Write the proportion equation
   747,692 : 1,640,140 = 1,640,140 : x
2. Step 2: Convert to fraction form
   747,692/1,640,140 = 1,640,140/x
3. Step 3: Cross multiply
   747,692x = 1,640,140 × 1,640,140
4. Step 4: Simplify right side
   747,692x = 2,690,059,219,600
5. Step 5: Solve for x
   x = 2,690,059,219,600/747,692
6. Step 6: Final answer
   x = 3,597,817.31