Finding the Third Proportional to 721,482 and 1,142,386

Step by Step Solution

1. Step 1: Write the proportion equation
   721,482 : 1,142,386 = 1,142,386 : x
2. Step 2: Convert to fraction form
   721,482/1,142,386 = 1,142,386/x
3. Step 3: Cross multiply
   721,482x = 1,142,386 × 1,142,386
4. Step 4: Simplify right side
   721,482x = 1,305,045,772,996
5. Step 5: Solve for x
   x = 1,305,045,772,996/721,482
6. Step 6: Final answer
   x = 1,808,840.38