Finding the Third Proportional to 3,685,140 and 7,973,890

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685,140 : 7,973,890 = 7,973,890 : x
2. Step 2: Convert to fraction form
   3,685,140/7,973,890 = 7,973,890/x
3. Step 3: Cross multiply
   3,685,140x = 7,973,890 × 7,973,890
4. Step 4: Simplify right side
   3,685,140x = 63,582,921,732,100
5. Step 5: Solve for x
   x = 63,582,921,732,100/3,685,140
6. Step 6: Final answer
   x = 17,253,868.71