Finding the Third Proportional to 42,075.75 and 90,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,075.75 : 90,061.50 = 90,061.50 : x
2. Step 2: Convert to fraction form
   42,075.75/90,061.50 = 90,061.50/x
3. Step 3: Cross multiply
   42,075.75x = 90,061.50 × 90,061.50
4. Step 4: Simplify right side
   42,075.75x = 8,111,073,782.25
5. Step 5: Solve for x
   x = 8,111,073,782.25/42,075.75
6. Step 6: Final answer
   x = 192,773.12