Finding the Third Proportional to 136,380.50 and 291,714.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,380.50 : 291,714.50 = 291,714.50 : x
2. Step 2: Convert to fraction form
   136,380.50/291,714.50 = 291,714.50/x
3. Step 3: Cross multiply
   136,380.50x = 291,714.50 × 291,714.50
4. Step 4: Simplify right side
   136,380.50x = 85,097,349,510.25
5. Step 5: Solve for x
   x = 85,097,349,510.25/136,380.50
6. Step 6: Final answer
   x = 623,970.07