Finding the Third Proportional to 623,521.50 and 913,074

Step by Step Solution

1. Step 1: Write the proportion equation
   623,521.50 : 913,074 = 913,074 : x
2. Step 2: Convert to fraction form
   623,521.50/913,074 = 913,074/x
3. Step 3: Cross multiply
   623,521.50x = 913,074 × 913,074
4. Step 4: Simplify right side
   623,521.50x = 833,704,129,476
5. Step 5: Solve for x
   x = 833,704,129,476/623,521.50
6. Step 6: Final answer
   x = 1,337,089.63