Finding the Third Proportional to 45,400.50 and 99,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,400.50 : 99,412.50 = 99,412.50 : x
2. Step 2: Convert to fraction form
   45,400.50/99,412.50 = 99,412.50/x
3. Step 3: Cross multiply
   45,400.50x = 99,412.50 × 99,412.50
4. Step 4: Simplify right side
   45,400.50x = 9,882,845,156.25
5. Step 5: Solve for x
   x = 9,882,845,156.25/45,400.50
6. Step 6: Final answer
   x = 217,681.42