Finding the Third Proportional to 143,127 and 210,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,127 : 210,316.50 = 210,316.50 : x
2. Step 2: Convert to fraction form
   143,127/210,316.50 = 210,316.50/x
3. Step 3: Cross multiply
   143,127x = 210,316.50 × 210,316.50
4. Step 4: Simplify right side
   143,127x = 44,233,030,172.25
5. Step 5: Solve for x
   x = 44,233,030,172.25/143,127
6. Step 6: Final answer
   x = 309,047.42