Finding the Third Proportional to 730,638 and 1,146,438

Step by Step Solution

1. Step 1: Write the proportion equation
   730,638 : 1,146,438 = 1,146,438 : x
2. Step 2: Convert to fraction form
   730,638/1,146,438 = 1,146,438/x
3. Step 3: Cross multiply
   730,638x = 1,146,438 × 1,146,438
4. Step 4: Simplify right side
   730,638x = 1,314,320,087,844
5. Step 5: Solve for x
   x = 1,314,320,087,844/730,638
6. Step 6: Final answer
   x = 1,798,866.32