Finding the Third Proportional to 799,212 and 1,712,139

Step by Step Solution

1. Step 1: Write the proportion equation
   799,212 : 1,712,139 = 1,712,139 : x
2. Step 2: Convert to fraction form
   799,212/1,712,139 = 1,712,139/x
3. Step 3: Cross multiply
   799,212x = 1,712,139 × 1,712,139
4. Step 4: Simplify right side
   799,212x = 2,931,419,955,321
5. Step 5: Solve for x
   x = 2,931,419,955,321/799,212
6. Step 6: Final answer
   x = 3,667,887.81