Finding the Third Proportional to 221,154 and 473,860

Step by Step Solution

1. Step 1: Write the proportion equation
   221,154 : 473,860 = 473,860 : x
2. Step 2: Convert to fraction form
   221,154/473,860 = 473,860/x
3. Step 3: Cross multiply
   221,154x = 473,860 × 473,860
4. Step 4: Simplify right side
   221,154x = 224,543,299,600
5. Step 5: Solve for x
   x = 224,543,299,600/221,154
6. Step 6: Final answer
   x = 1,015,325.52