Finding the Third Proportional to 42,890.63 and 61,875.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,890.63 : 61,875.56 = 61,875.56 : x
2. Step 2: Convert to fraction form
   42,890.63/61,875.56 = 61,875.56/x
3. Step 3: Cross multiply
   42,890.63x = 61,875.56 × 61,875.56
4. Step 4: Simplify right side
   42,890.63x = 3,828,585,234.69
5. Step 5: Solve for x
   x = 3,828,585,234.69/42,890.63
6. Step 6: Final answer
   x = 89,263.92