Finding the Third Proportional to 3,621,769 and 7,872,534

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621,769 : 7,872,534 = 7,872,534 : x
2. Step 2: Convert to fraction form
   3,621,769/7,872,534 = 7,872,534/x
3. Step 3: Cross multiply
   3,621,769x = 7,872,534 × 7,872,534
4. Step 4: Simplify right side
   3,621,769x = 61,976,791,581,156
5. Step 5: Solve for x
   x = 61,976,791,581,156/3,621,769
6. Step 6: Final answer
   x = 17,112,298.32