Finding the Third Proportional to 530,223 and 803,056.50

Step by Step Solution

1. Step 1: Write the proportion equation
   530,223 : 803,056.50 = 803,056.50 : x
2. Step 2: Convert to fraction form
   530,223/803,056.50 = 803,056.50/x
3. Step 3: Cross multiply
   530,223x = 803,056.50 × 803,056.50
4. Step 4: Simplify right side
   530,223x = 644,899,742,192.25
5. Step 5: Solve for x
   x = 644,899,742,192.25/530,223
6. Step 6: Final answer
   x = 1,216,280.21