Finding the Third Proportional to 452,642.50 and 989,363

Step by Step Solution

1. Step 1: Write the proportion equation
   452,642.50 : 989,363 = 989,363 : x
2. Step 2: Convert to fraction form
   452,642.50/989,363 = 989,363/x
3. Step 3: Cross multiply
   452,642.50x = 989,363 × 989,363
4. Step 4: Simplify right side
   452,642.50x = 978,839,145,769
5. Step 5: Solve for x
   x = 978,839,145,769/452,642.50
6. Step 6: Final answer
   x = 2,162,499.42