Finding the Third Proportional to 443,280 and 702,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,280 : 702,031.50 = 702,031.50 : x
2. Step 2: Convert to fraction form
   443,280/702,031.50 = 702,031.50/x
3. Step 3: Cross multiply
   443,280x = 702,031.50 × 702,031.50
4. Step 4: Simplify right side
   443,280x = 492,848,226,992.25
5. Step 5: Solve for x
   x = 492,848,226,992.25/443,280
6. Step 6: Final answer
   x = 1,111,821.48