Finding the Third Proportional to 1,365,613 and 2,121,769

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365,613 : 2,121,769 = 2,121,769 : x
2. Step 2: Convert to fraction form
   1,365,613/2,121,769 = 2,121,769/x
3. Step 3: Cross multiply
   1,365,613x = 2,121,769 × 2,121,769
4. Step 4: Simplify right side
   1,365,613x = 4,501,903,689,361
5. Step 5: Solve for x
   x = 4,501,903,689,361/1,365,613
6. Step 6: Final answer
   x = 3,296,617.48