Finding the Third Proportional to 619,060 and 1,312,616

Step by Step Solution

1. Step 1: Write the proportion equation
   619,060 : 1,312,616 = 1,312,616 : x
2. Step 2: Convert to fraction form
   619,060/1,312,616 = 1,312,616/x
3. Step 3: Cross multiply
   619,060x = 1,312,616 × 1,312,616
4. Step 4: Simplify right side
   619,060x = 1,722,960,763,456
5. Step 5: Solve for x
   x = 1,722,960,763,456/619,060
6. Step 6: Final answer
   x = 2,783,188.65