Finding the Third Proportional to 860,060 and 1,290,414

Step by Step Solution

1. Step 1: Write the proportion equation
   860,060 : 1,290,414 = 1,290,414 : x
2. Step 2: Convert to fraction form
   860,060/1,290,414 = 1,290,414/x
3. Step 3: Cross multiply
   860,060x = 1,290,414 × 1,290,414
4. Step 4: Simplify right side
   860,060x = 1,665,168,291,396
5. Step 5: Solve for x
   x = 1,665,168,291,396/860,060
6. Step 6: Final answer
   x = 1,936,107.12