Finding the Third Proportional to 156,931,557 and 215,424,184

Step by Step Solution

1. Step 1: Write the proportion equation
   156,931,557 : 215,424,184 = 215,424,184 : x
2. Step 2: Convert to fraction form
   156,931,557/215,424,184 = 215,424,184/x
3. Step 3: Cross multiply
   156,931,557x = 215,424,184 × 215,424,184
4. Step 4: Simplify right side
   156,931,557x = 46,407,579,052,065,856
5. Step 5: Solve for x
   x = 46,407,579,052,065,856/156,931,557
6. Step 6: Final answer
   x = 295,718,591.84