Finding the Third Proportional to 19,312.88 and 42,314.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,312.88 : 42,314.63 = 42,314.63 : x
2. Step 2: Convert to fraction form
   19,312.88/42,314.63 = 42,314.63/x
3. Step 3: Cross multiply
   19,312.88x = 42,314.63 × 42,314.63
4. Step 4: Simplify right side
   19,312.88x = 1,790,527,488.89
5. Step 5: Solve for x
   x = 1,790,527,488.89/19,312.88
6. Step 6: Final answer
   x = 92,711.60