Finding the Third Proportional to 60,210.84 and 90,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,210.84 : 90,760.50 = 90,760.50 : x
2. Step 2: Convert to fraction form
   60,210.84/90,760.50 = 90,760.50/x
3. Step 3: Cross multiply
   60,210.84x = 90,760.50 × 90,760.50
4. Step 4: Simplify right side
   60,210.84x = 8,237,468,360.25
5. Step 5: Solve for x
   x = 8,237,468,360.25/60,210.84
6. Step 6: Final answer
   x = 136,810.38