Finding the Third Proportional to 1,215,072 and 2,664,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,072 : 2,664,160 = 2,664,160 : x
2. Step 2: Convert to fraction form
   1,215,072/2,664,160 = 2,664,160/x
3. Step 3: Cross multiply
   1,215,072x = 2,664,160 × 2,664,160
4. Step 4: Simplify right side
   1,215,072x = 7,097,748,505,600
5. Step 5: Solve for x
   x = 7,097,748,505,600/1,215,072
6. Step 6: Final answer
   x = 5,841,422.16