Finding the Third Proportional to 612,888 and 920,004

Step by Step Solution

1. Step 1: Write the proportion equation
   612,888 : 920,004 = 920,004 : x
2. Step 2: Convert to fraction form
   612,888/920,004 = 920,004/x
3. Step 3: Cross multiply
   612,888x = 920,004 × 920,004
4. Step 4: Simplify right side
   612,888x = 846,407,360,016
5. Step 5: Solve for x
   x = 846,407,360,016/612,888
6. Step 6: Final answer
   x = 1,381,014.74