Finding the Third Proportional to 877,243.50 and 1,913,031

Step by Step Solution

1. Step 1: Write the proportion equation
   877,243.50 : 1,913,031 = 1,913,031 : x
2. Step 2: Convert to fraction form
   877,243.50/1,913,031 = 1,913,031/x
3. Step 3: Cross multiply
   877,243.50x = 1,913,031 × 1,913,031
4. Step 4: Simplify right side
   877,243.50x = 3,659,687,606,961
5. Step 5: Solve for x
   x = 3,659,687,606,961/877,243.50
6. Step 6: Final answer
   x = 4,171,803.62