Finding the Third Proportional to 647,070 and 1,405,916

Step by Step Solution

1. Step 1: Write the proportion equation
   647,070 : 1,405,916 = 1,405,916 : x
2. Step 2: Convert to fraction form
   647,070/1,405,916 = 1,405,916/x
3. Step 3: Cross multiply
   647,070x = 1,405,916 × 1,405,916
4. Step 4: Simplify right side
   647,070x = 1,976,599,799,056
5. Step 5: Solve for x
   x = 1,976,599,799,056/647,070
6. Step 6: Final answer
   x = 3,054,692.38