Finding the Third Proportional to 9,971,056.50 and 21,689,133

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971,056.50 : 21,689,133 = 21,689,133 : x
2. Step 2: Convert to fraction form
   9,971,056.50/21,689,133 = 21,689,133/x
3. Step 3: Cross multiply
   9,971,056.50x = 21,689,133 × 21,689,133
4. Step 4: Simplify right side
   9,971,056.50x = 470,418,490,291,689
5. Step 5: Solve for x
   x = 470,418,490,291,689/9,971,056.50
6. Step 6: Final answer
   x = 47,178,399.83