Finding the Third Proportional to 19,528,321.50 and 42,528,321

Step by Step Solution

1. Step 1: Write the proportion equation
   19,528,321.50 : 42,528,321 = 42,528,321 : x
2. Step 2: Convert to fraction form
   19,528,321.50/42,528,321 = 42,528,321/x
3. Step 3: Cross multiply
   19,528,321.50x = 42,528,321 × 42,528,321
4. Step 4: Simplify right side
   19,528,321.50x = 1,808,658,087,079,041
5. Step 5: Solve for x
   x = 1,808,658,087,079,041/19,528,321.50
6. Step 6: Final answer
   x = 92,617,181.00