Finding the Third Proportional to 574,521 and 805,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   574,521 : 805,069.50 = 805,069.50 : x
2. Step 2: Convert to fraction form
   574,521/805,069.50 = 805,069.50/x
3. Step 3: Cross multiply
   574,521x = 805,069.50 × 805,069.50
4. Step 4: Simplify right side
   574,521x = 648,136,899,830.25
5. Step 5: Solve for x
   x = 648,136,899,830.25/574,521
6. Step 6: Final answer
   x = 1,128,134.39