Finding the Third Proportional to 136,363.50 and 291,681

Step by Step Solution

1. Step 1: Write the proportion equation
   136,363.50 : 291,681 = 291,681 : x
2. Step 2: Convert to fraction form
   136,363.50/291,681 = 291,681/x
3. Step 3: Cross multiply
   136,363.50x = 291,681 × 291,681
4. Step 4: Simplify right side
   136,363.50x = 85,077,805,761
5. Step 5: Solve for x
   x = 85,077,805,761/136,363.50
6. Step 6: Final answer
   x = 623,904.53