Finding the Third Proportional to 602,426.25 and 803,145

Step by Step Solution

1. Step 1: Write the proportion equation
   602,426.25 : 803,145 = 803,145 : x
2. Step 2: Convert to fraction form
   602,426.25/803,145 = 803,145/x
3. Step 3: Cross multiply
   602,426.25x = 803,145 × 803,145
4. Step 4: Simplify right side
   602,426.25x = 645,041,891,025
5. Step 5: Solve for x
   x = 645,041,891,025/602,426.25
6. Step 6: Final answer
   x = 1,070,740.01