Finding the Third Proportional to 1,071,575 and 1,621,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,575 : 1,621,139 = 1,621,139 : x
2. Step 2: Convert to fraction form
   1,071,575/1,621,139 = 1,621,139/x
3. Step 3: Cross multiply
   1,071,575x = 1,621,139 × 1,621,139
4. Step 4: Simplify right side
   1,071,575x = 2,628,091,657,321
5. Step 5: Solve for x
   x = 2,628,091,657,321/1,071,575
6. Step 6: Final answer
   x = 2,452,550.36