Finding the Third Proportional to 70,729 and 152,528

Step by Step Solution

1. Step 1: Write the proportion equation
   70,729 : 152,528 = 152,528 : x
2. Step 2: Convert to fraction form
   70,729/152,528 = 152,528/x
3. Step 3: Cross multiply
   70,729x = 152,528 × 152,528
4. Step 4: Simplify right side
   70,729x = 23,264,790,784
5. Step 5: Solve for x
   x = 23,264,790,784/70,729
6. Step 6: Final answer
   x = 328,928.60