Finding the Third Proportional to 1,447,407 and 2,129,010

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447,407 : 2,129,010 = 2,129,010 : x
2. Step 2: Convert to fraction form
   1,447,407/2,129,010 = 2,129,010/x
3. Step 3: Cross multiply
   1,447,407x = 2,129,010 × 2,129,010
4. Step 4: Simplify right side
   1,447,407x = 4,532,683,580,100
5. Step 5: Solve for x
   x = 4,532,683,580,100/1,447,407
6. Step 6: Final answer
   x = 3,131,588.82