Finding the Third Proportional to 40,763.81 and 64,428.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,763.81 : 64,428.75 = 64,428.75 : x
2. Step 2: Convert to fraction form
   40,763.81/64,428.75 = 64,428.75/x
3. Step 3: Cross multiply
   40,763.81x = 64,428.75 × 64,428.75
4. Step 4: Simplify right side
   40,763.81x = 4,151,063,826.56
5. Step 5: Solve for x
   x = 4,151,063,826.56/40,763.81
6. Step 6: Final answer
   x = 101,832.08