Finding the Third Proportional to 32,490 and 70,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,490 : 70,528.50 = 70,528.50 : x
2. Step 2: Convert to fraction form
   32,490/70,528.50 = 70,528.50/x
3. Step 3: Cross multiply
   32,490x = 70,528.50 × 70,528.50
4. Step 4: Simplify right side
   32,490x = 4,974,269,312.25
5. Step 5: Solve for x
   x = 4,974,269,312.25/32,490
6. Step 6: Final answer
   x = 153,101.55