Finding the Third Proportional to 70,147.50 and 105,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,147.50 : 105,302.50 = 105,302.50 : x
2. Step 2: Convert to fraction form
   70,147.50/105,302.50 = 105,302.50/x
3. Step 3: Cross multiply
   70,147.50x = 105,302.50 × 105,302.50
4. Step 4: Simplify right side
   70,147.50x = 11,088,616,506.25
5. Step 5: Solve for x
   x = 11,088,616,506.25/70,147.50
6. Step 6: Final answer
   x = 158,075.72