Finding the Third Proportional to 28,725,852.50 and 42,987,000

Step by Step Solution

1. Step 1: Write the proportion equation
   28,725,852.50 : 42,987,000 = 42,987,000 : x
2. Step 2: Convert to fraction form
   28,725,852.50/42,987,000 = 42,987,000/x
3. Step 3: Cross multiply
   28,725,852.50x = 42,987,000 × 42,987,000
4. Step 4: Simplify right side
   28,725,852.50x = 1,847,882,169,000,000
5. Step 5: Solve for x
   x = 1,847,882,169,000,000/28,725,852.50
6. Step 6: Final answer
   x = 64,328,192.49