Finding the Third Proportional to 149,136 and 230,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,136 : 230,407.50 = 230,407.50 : x
2. Step 2: Convert to fraction form
   149,136/230,407.50 = 230,407.50/x
3. Step 3: Cross multiply
   149,136x = 230,407.50 × 230,407.50
4. Step 4: Simplify right side
   149,136x = 53,087,616,056.25
5. Step 5: Solve for x
   x = 53,087,616,056.25/149,136
6. Step 6: Final answer
   x = 355,967.81