Finding the Third Proportional to 1,473,620 and 2,215,905

Step by Step Solution

1. Step 1: Write the proportion equation
   1,473,620 : 2,215,905 = 2,215,905 : x
2. Step 2: Convert to fraction form
   1,473,620/2,215,905 = 2,215,905/x
3. Step 3: Cross multiply
   1,473,620x = 2,215,905 × 2,215,905
4. Step 4: Simplify right side
   1,473,620x = 4,910,234,969,025
5. Step 5: Solve for x
   x = 4,910,234,969,025/1,473,620
6. Step 6: Final answer
   x = 3,332,090.34