Finding the Third Proportional to 16,521,311.81 and 35,788,447.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,521,311.81 : 35,788,447.69 = 35,788,447.69 : x
2. Step 2: Convert to fraction form
   16,521,311.81/35,788,447.69 = 35,788,447.69/x
3. Step 3: Cross multiply
   16,521,311.81x = 35,788,447.69 × 35,788,447.69
4. Step 4: Simplify right side
   16,521,311.81x = 1,280,812,987,880,924
5. Step 5: Solve for x
   x = 1,280,812,987,880,924/16,521,311.81
6. Step 6: Final answer
   x = 77,524,896.47