Finding the Third Proportional to 367,786 and 788,060

Step by Step Solution

1. Step 1: Write the proportion equation
   367,786 : 788,060 = 788,060 : x
2. Step 2: Convert to fraction form
   367,786/788,060 = 788,060/x
3. Step 3: Cross multiply
   367,786x = 788,060 × 788,060
4. Step 4: Simplify right side
   367,786x = 621,038,563,600
5. Step 5: Solve for x
   x = 621,038,563,600/367,786
6. Step 6: Final answer
   x = 1,688,586.74