Finding the Third Proportional to 747,670 and 1,640,090

Step by Step Solution

1. Step 1: Write the proportion equation
   747,670 : 1,640,090 = 1,640,090 : x
2. Step 2: Convert to fraction form
   747,670/1,640,090 = 1,640,090/x
3. Step 3: Cross multiply
   747,670x = 1,640,090 × 1,640,090
4. Step 4: Simplify right side
   747,670x = 2,689,895,208,100
5. Step 5: Solve for x
   x = 2,689,895,208,100/747,670
6. Step 6: Final answer
   x = 3,597,703.81