Finding the Third Proportional to 3,973,130 and 8,581,310

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973,130 : 8,581,310 = 8,581,310 : x
2. Step 2: Convert to fraction form
   3,973,130/8,581,310 = 8,581,310/x
3. Step 3: Cross multiply
   3,973,130x = 8,581,310 × 8,581,310
4. Step 4: Simplify right side
   3,973,130x = 73,638,881,316,100
5. Step 5: Solve for x
   x = 73,638,881,316,100/3,973,130
6. Step 6: Final answer
   x = 18,534,223.98