Finding the Third Proportional to 221,308 and 474,869.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,308 : 474,869.50 = 474,869.50 : x
2. Step 2: Convert to fraction form
   221,308/474,869.50 = 474,869.50/x
3. Step 3: Cross multiply
   221,308x = 474,869.50 × 474,869.50
4. Step 4: Simplify right side
   221,308x = 225,501,042,030.25
5. Step 5: Solve for x
   x = 225,501,042,030.25/221,308
6. Step 6: Final answer
   x = 1,018,946.64