Finding the Third Proportional to 3,613,128 and 5,319,890

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613,128 : 5,319,890 = 5,319,890 : x
2. Step 2: Convert to fraction form
   3,613,128/5,319,890 = 5,319,890/x
3. Step 3: Cross multiply
   3,613,128x = 5,319,890 × 5,319,890
4. Step 4: Simplify right side
   3,613,128x = 28,301,229,612,100
5. Step 5: Solve for x
   x = 28,301,229,612,100/3,613,128
6. Step 6: Final answer
   x = 7,832,888.74