Finding the Third Proportional to 133,867.50 and 291,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,867.50 : 291,061.50 = 291,061.50 : x
2. Step 2: Convert to fraction form
   133,867.50/291,061.50 = 291,061.50/x
3. Step 3: Cross multiply
   133,867.50x = 291,061.50 × 291,061.50
4. Step 4: Simplify right side
   133,867.50x = 84,716,796,782.25
5. Step 5: Solve for x
   x = 84,716,796,782.25/133,867.50
6. Step 6: Final answer
   x = 632,840.66