Finding the Third Proportional to 830,394 and 1,281,069

Step by Step Solution

1. Step 1: Write the proportion equation
   830,394 : 1,281,069 = 1,281,069 : x
2. Step 2: Convert to fraction form
   830,394/1,281,069 = 1,281,069/x
3. Step 3: Cross multiply
   830,394x = 1,281,069 × 1,281,069
4. Step 4: Simplify right side
   830,394x = 1,641,137,782,761
5. Step 5: Solve for x
   x = 1,641,137,782,761/830,394
6. Step 6: Final answer
   x = 1,976,336.27