Finding the Third Proportional to 780,402 and 1,702,620

Step by Step Solution

1. Step 1: Write the proportion equation
   780,402 : 1,702,620 = 1,702,620 : x
2. Step 2: Convert to fraction form
   780,402/1,702,620 = 1,702,620/x
3. Step 3: Cross multiply
   780,402x = 1,702,620 × 1,702,620
4. Step 4: Simplify right side
   780,402x = 2,898,914,864,400
5. Step 5: Solve for x
   x = 2,898,914,864,400/780,402
6. Step 6: Final answer
   x = 3,714,643.05