Finding the Third Proportional to 602,436 and 803,158

Step by Step Solution

1. Step 1: Write the proportion equation
   602,436 : 803,158 = 803,158 : x
2. Step 2: Convert to fraction form
   602,436/803,158 = 803,158/x
3. Step 3: Cross multiply
   602,436x = 803,158 × 803,158
4. Step 4: Simplify right side
   602,436x = 645,062,772,964
5. Step 5: Solve for x
   x = 645,062,772,964/602,436
6. Step 6: Final answer
   x = 1,070,757.35