Finding the Third Proportional to 64,764 and 98,490

Step by Step Solution

1. Step 1: Write the proportion equation
   64,764 : 98,490 = 98,490 : x
2. Step 2: Convert to fraction form
   64,764/98,490 = 98,490/x
3. Step 3: Cross multiply
   64,764x = 98,490 × 98,490
4. Step 4: Simplify right side
   64,764x = 9,700,280,100
5. Step 5: Solve for x
   x = 9,700,280,100/64,764
6. Step 6: Final answer
   x = 149,778.89