Finding the Third Proportional to 243,061 and 380,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,061 : 380,422.50 = 380,422.50 : x
2. Step 2: Convert to fraction form
   243,061/380,422.50 = 380,422.50/x
3. Step 3: Cross multiply
   243,061x = 380,422.50 × 380,422.50
4. Step 4: Simplify right side
   243,061x = 144,721,278,506.25
5. Step 5: Solve for x
   x = 144,721,278,506.25/243,061
6. Step 6: Final answer
   x = 595,411.35