Finding the Third Proportional to 42,948.56 and 63,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,948.56 : 63,139.50 = 63,139.50 : x
2. Step 2: Convert to fraction form
   42,948.56/63,139.50 = 63,139.50/x
3. Step 3: Cross multiply
   42,948.56x = 63,139.50 × 63,139.50
4. Step 4: Simplify right side
   42,948.56x = 3,986,596,460.25
5. Step 5: Solve for x
   x = 3,986,596,460.25/42,948.56
6. Step 6: Final answer
   x = 92,822.58