Finding the Third Proportional to 156,931,542 and 215,424,162

Step by Step Solution

1. Step 1: Write the proportion equation
   156,931,542 : 215,424,162 = 215,424,162 : x
2. Step 2: Convert to fraction form
   156,931,542/215,424,162 = 215,424,162/x
3. Step 3: Cross multiply
   156,931,542x = 215,424,162 × 215,424,162
4. Step 4: Simplify right side
   156,931,542x = 46,407,569,573,402,240
5. Step 5: Solve for x
   x = 46,407,569,573,402,240/156,931,542
6. Step 6: Final answer
   x = 295,718,559.71