Finding the Third Proportional to 602,430 and 803,150

Step by Step Solution

1. Step 1: Write the proportion equation
   602,430 : 803,150 = 803,150 : x
2. Step 2: Convert to fraction form
   602,430/803,150 = 803,150/x
3. Step 3: Cross multiply
   602,430x = 803,150 × 803,150
4. Step 4: Simplify right side
   602,430x = 645,049,922,500
5. Step 5: Solve for x
   x = 645,049,922,500/602,430
6. Step 6: Final answer
   x = 1,070,746.68