Finding the Third Proportional to 386,061 and 590,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   386,061 : 590,572.50 = 590,572.50 : x
2. Step 2: Convert to fraction form
   386,061/590,572.50 = 590,572.50/x
3. Step 3: Cross multiply
   386,061x = 590,572.50 × 590,572.50
4. Step 4: Simplify right side
   386,061x = 348,775,877,756.25
5. Step 5: Solve for x
   x = 348,775,877,756.25/386,061
6. Step 6: Final answer
   x = 903,421.68