Finding the Third Proportional to 9,685,421.72 and 21,073,301.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,685,421.72 : 21,073,301.72 = 21,073,301.72 : x
2. Step 2: Convert to fraction form
   9,685,421.72/21,073,301.72 = 21,073,301.72/x
3. Step 3: Cross multiply
   9,685,421.72x = 21,073,301.72 × 21,073,301.72
4. Step 4: Simplify right side
   9,685,421.72x = 444,084,045,329,471.69
5. Step 5: Solve for x
   x = 444,084,045,329,471.69/9,685,421.72
6. Step 6: Final answer
   x = 45,850,770.18